258628920 has 64 divisors (see below), whose sum is σ = 846426240. Its totient is φ = 62697600.

The previous prime is 258628897. The next prime is 258628949. The reversal of 258628920 is 29826852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96646 + ... + 99285.

It is an arithmetic number, because the mean of its divisors is an integer number (13225410).

Almost surely, 2^258628920 is an apocalyptic number.

258628920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258628920 is an abundant number, since it is smaller than the sum of its proper divisors (587797320).

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

258628920 is a wasteful number, since it uses less digits than its factorization.

258628920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195956 (or 195952 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 258628920 is about 16081.9439123509. The cubic root of 258628920 is about 637.1265386620.

The spelling of 258628920 in words is "two hundred fifty-eight million, six hundred twenty-eight thousand, nine hundred twenty".