Le Pen says she will lead the opposition to Macron.
He spoke with "the French president-elect to congratulate him on his victory", White House spokesman Sean Spicer said.
If another party wins a majority, Mr Macron could be pressured to choose a prime minister from that party, a situation the French call "cohabitation".
Speaking to thousands of supporters from the Louvre Museum's courtyard, Macron said that France is facing an "immense task" to rebuild European unity, fix the economy and ensure security against extremist threats.
The President-elect will attend a party board meeting Monday afternoon.
Sen. Burr says Flynn hasn't responded to subpoena
Burr told reporters Thursday that Flynn's lawyer informed the panel he will not abide by a subpoena for private documents. Flynn is faced with mounting legal bills, and held a meeting with friends to try to spur more work for his lobbying firm.
He has said that half of his candidates for the 577 seats in the National Assembly will be new to politics.
The transfer of power to Macron will take place Sunday, outgoing President Francois Hollande announced.
Wild celebrations broke out in many parts of Paris and across France as Macron, 39, wrapped up an overwhelming 66.06 per cent of all votes in a closely and bitterly fought battle.
Commissioning editor Tom Webber acquired United Kingdom and Commonwealth rights to The French Exception: Emmanuel Macron's extraordinary rise and risk from Kerry Glencorse at the Susanna Lea Agency.
Macron will name his prime minister next week, but could be forced to amend his choice if the legislative elections don't go to plan.
NBA Draft 2017: Should Celtics trade or keep No. 1 pick?
On Tuesday night, the official 2017 NBA Draft order was revealed in NY and the second-likeliest scenario unfolded for the Knicks. I personally would keep the two picks unless there is some great deal that the Kings front office just can't say no to.
"I will be a candidate in the presidential majority and I wish to join up to his movement, the Republic on the Move".
Michael Roth, Germany's deputy foreign minister, applauded Macron's win but said the result was marred by the fact that 11 million people in France voted for Le Pen. But in his statement, Korsia also referenced concerns over the support shown to Le Pen - a nationalist who seeks a ban on wearing Jewish and Muslim religious symbols in public, ritual slaughter and the provision of pork-free meals in school cafeterias.
More congratulations rolled in from world leaders.
"In these conditions it is especially important to overcome mutual mistrust and unite efforts to ensure worldwide stability and security".
On the financial front, European stock markets edged down in early trading as investors had been widely expecting Macron's victory.
Soundgarden singer Chris Cornell dies
A medical examiner has determined Cornell killed himself by hanging in a room at the MGM Grand hotel in following a concert. On the night before his passing, there seemed to be no clue Chris Cornell's cause of death would be a suspected suicide.
The Stoxx Europe 600 Index slipped 0.1 per cent at the close, while the Euro Stoxx 50 Index lost less than 0.5 per cent. France's CAC 40 Index fell 0.9 per cent after rallying in the previous two sessions. Other indexes across Europe also dipped, while the euro, which briefly hit a six-month high above $1.10 overnight, was down 0.7 percent at $1.0924.
- Bush photobombs TV reporter at Rangers game
- Trump slams Comey, once more dismisses Russia probe as "witch hunt"
- Champions League would be start of something big for Liverpool, says Wijnaldum
- Hospital recovers fully from cyber attack
- Jose Mourinho confirms Daley Blind will start the Europa League final
- Theresa May launches Tory manifesto with vow to govern for 'mainstream Britain'
- Paul Pierce Thinks Celtics Have To Trade The #1 Overall Pick
- Scientists are "tantalisingly close" to creating limitless artificial blood supply
- White House: Trump interviewing 4 FBI candidates
- Tristan Thompson expects Isaiah Thomas to play better in game 2