258402904 has 16 divisors (see below), whose sum is σ = 490344120. Its totient is φ = 127644480.

The previous prime is 258402901. The next prime is 258402923. The reversal of 258402904 is 409204852.

It is a self number, because there is not a number n which added to its sum of digits gives 258402904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258402901) 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, 193917 + ... + 195244.

Almost surely, 2^258402904 is an apocalyptic number.

It is an amenable number.

258402904 is a deficient number, since it is larger than the sum of its proper divisors (231941216).

258402904 is a wasteful number, since it uses less digits than its factorization.

258402904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389250 (or 389246 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 258402904 is about 16074.9153652515. The cubic root of 258402904 is about 636.9408894577.

The spelling of 258402904 in words is "two hundred fifty-eight million, four hundred two thousand, nine hundred four".