Hecho general: 20446 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 20446 is an unremarkable number.
Trivia: 20446 is an uninteresting number.
Fecha histórica: December 23rd is the day in 1783 that George Washington resigns as commander-in-chief of the Continental Army at the Maryland State House in Annapolis, Maryland.