Hecho matemático: 20337 is an uninteresting number.
Trivia: 20337 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
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.