Hecho matemático: 2440 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 2440 is a boring number.
Fecha histórica: September 5th is the day in 1945 that Iva Toguri D'Aquino, a Japanese-American suspected of being wartime radio propagandist Tokyo Rose, is arrested in Yokohama.