Fait mathématique: 40357 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Culture générale: 40357 is an uninteresting number.
Date historique: June 29th is the day in 1874 that Greek politician Charilaos Trikoupis publishes a manifesto in the Athens daily Kairoi entitled "Who's to Blame?.