Hecho general: 6740 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 6740 is the number of 13-iamonds that do not tile the plane.
Trivia: 6740 is an uninteresting number.
Fecha histórica: June 14th is the day in 1954 that U.S. President Dwight D. Eisenhower signs a bill into law that places the words "under God" into the U.S.