250928 has 10 divisors (see below), whose sum is σ = 486204. Its totient is φ = 125456.

The previous prime is 250919. The next prime is 250949. The reversal of 250928 is 829052.

It is a super-2 number, since 2×250928² = 125929722368, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 250897 and 250906.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 250928.

It is an unprimeable number.

250928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7826 + ... + 7857.

2²⁵⁰⁹²⁸ is an apocalyptic number.

It is an amenable number.

250928 is a deficient number, since it is larger than the sum of its proper divisors (235276).

250928 is a wasteful number, since it uses less digits than its factorization.

250928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15691 (or 15685 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 250928 is about 500.9271404107. The cubic root of 250928 is about 63.0739033622.

The spelling of 250928 in words is "two hundred fifty thousand, nine hundred twenty-eight".