258306992 has 20 divisors (see below), whose sum is σ = 503368080. Its totient is φ = 128405568.

The previous prime is 258306989. The next prime is 258307009. The reversal of 258306992 is 299603852.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43892 + ... + 49427.

It is an arithmetic number, because the mean of its divisors is an integer number (25168404).

Almost surely, 2^258306992 is an apocalyptic number.

It is an amenable number.

258306992 is a deficient number, since it is larger than the sum of its proper divisors (245061088).

258306992 is a wasteful number, since it uses less digits than its factorization.

258306992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93500 (or 93494 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 258306992 is about 16071.9318067244. The cubic root of 258306992 is about 636.8620747675.

The spelling of 258306992 in words is "two hundred fifty-eight million, three hundred six thousand, nine hundred ninety-two".