Fait mathématique: 4340 is the number of 3×3 sliding puzzle positions that require exactly 27 moves to solve starting with the hole in the center.
Culture générale: 4340 is a boring number.
Date historique: November 18th is the day in 1970 that U.S. President Richard Nixon asks the U.S. Congress for $155 million USD in supplemental aid for the Cambodian government.