Fatto matematico: 4223 is the maximum number of 12^{th} powers needed to sum to any number.
Trivia: 4223 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: July 24th is the day in 2002 that Democrat James Traficant is expelled from the United States House of Representatives on a vote of 420 to 1.