129457416 has 48 divisors (see below), whose sum is σ = 355748400. Its totient is φ = 39228640.

The previous prime is 129457399. The next prime is 129457441. The reversal of 129457416 is 614754921.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19386 + ... + 25193.

It is an arithmetic number, because the mean of its divisors is an integer number (7411425).

Almost surely, 2^129457416 is an apocalyptic number.

It is an amenable number.

129457416 is an abundant number, since it is smaller than the sum of its proper divisors (226290984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129457416 is a wasteful number, since it uses less digits than its factorization.

129457416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44610 (or 44595 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 129457416 is about 11377.9354893583. The cubic root of 129457416 is about 505.8739446550.

The spelling of 129457416 in words is "one hundred twenty-nine million, four hundred fifty-seven thousand, four hundred sixteen".