286290256 has 20 divisors (see below), whose sum is σ = 633928672. Its totient is φ = 122695776.

The previous prime is 286290229. The next prime is 286290281. The reversal of 286290256 is 652092682.

It is a super-2 number, since 2×286290256² = 163924221361091072, which contains 22 as substring.

It is a congruent number.

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, 1277970 + ... + 1278193.

Almost surely, 2^286290256 is an apocalyptic number.

It is an amenable number.

286290256 is an abundant number, since it is smaller than the sum of its proper divisors (347638416).

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

286290256 is a wasteful number, since it uses less digits than its factorization.

286290256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556178 (or 2556172 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 286290256 is about 16920.1139476069. The cubic root of 286290256 is about 659.0760379946.

The spelling of 286290256 in words is "two hundred eighty-six million, two hundred ninety thousand, two hundred fifty-six".