129833904 has 20 divisors (see below), whose sum is σ = 335404376. Its totient is φ = 43277952.

The previous prime is 129833903. The next prime is 129833911. The reversal of 129833904 is 409338921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129833903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352389 + ... + 1352484.

Almost surely, 2^129833904 is an apocalyptic number.

It is an amenable number.

129833904 is an abundant number, since it is smaller than the sum of its proper divisors (205570472).

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

129833904 is a wasteful number, since it uses less digits than its factorization.

129833904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704884 (or 2704878 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 129833904 is about 11394.4681315101. The cubic root of 129833904 is about 506.3638641610.

The spelling of 129833904 in words is "one hundred twenty-nine million, eight hundred thirty-three thousand, nine hundred four".