258009904 has 10 divisors (see below), whose sum is σ = 499894220. Its totient is φ = 129004944.

The previous prime is 258009893. The next prime is 258009919. The reversal of 258009904 is 409900852.

258009904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×258009904² = 133138221124178432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8062794 + ... + 8062825.

It is an arithmetic number, because the mean of its divisors is an integer number (49989422).

Almost surely, 2^258009904 is an apocalyptic number.

It is an amenable number.

258009904 is a deficient number, since it is larger than the sum of its proper divisors (241884316).

258009904 is a wasteful number, since it uses less digits than its factorization.

258009904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16125627 (or 16125621 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 258009904 is about 16062.6866993041. The cubic root of 258009904 is about 636.6178219093.

The spelling of 258009904 in words is "two hundred fifty-eight million, nine thousand, nine hundred four".