Fatto generale: 2444 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2444 is a boring number.
Trivia: 2444 is a boring number.
Data storica: September 9th is the day in 1966 that the National Traffic and Motor Vehicle Safety Act is signed into law by U.S. President Lyndon B. Johnson.