Fatto matematico: 434 is the smallest composite value of n for which s(n) + 2 = s(n+2).
Trivia: 434 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 9th is the day in 1842 that the first documented discovery of gold in California occurs at Rancho San Francisco, six years before the California Gold Rush.