258928 has 10 divisors (see below), whose sum is σ = 501704. Its totient is φ = 129456.

The previous prime is 258919. The next prime is 258949. The reversal of 258928 is 829852.

It is a junction number, because it is equal to n+sod(n) for n = 258893 and 258902.

It is a congruent number.

It is an unprimeable number.

258928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8076 + ... + 8107.

2²⁵⁸⁹²⁸ is an apocalyptic number.

It is an amenable number.

258928 is a deficient number, since it is larger than the sum of its proper divisors (242776).

258928 is a wasteful number, since it uses less digits than its factorization.

258928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191 (or 16185 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 258928 is about 508.8496831089. The cubic root of 258928 is about 63.7372036343.

The spelling of 258928 in words is "two hundred fifty-eight thousand, nine hundred twenty-eight".