258785904 has 40 divisors (see below), whose sum is σ = 719957392. Its totient is φ = 79626240.

The previous prime is 258785897. The next prime is 258785929. The reversal of 258785904 is 409587852.

258785904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206737 + ... + 207984.

Almost surely, 2^258785904 is an apocalyptic number.

258785904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

258785904 is an abundant number, since it is smaller than the sum of its proper divisors (461171488).

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

258785904 is a wasteful number, since it uses less digits than its factorization.

258785904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414745 (or 414739 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The square root of 258785904 is about 16086.8239251880. The cubic root of 258785904 is about 637.2554214422.

The spelling of 258785904 in words is "two hundred fifty-eight million, seven hundred eighty-five thousand, nine hundred four".