285031056 has 20 divisors (see below), whose sum is σ = 736330352. Its totient is φ = 95010336.

The previous prime is 285031049. The next prime is 285031067. The reversal of 285031056 is 650130582.

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, 2969026 + ... + 2969121.

Almost surely, 2^285031056 is an apocalyptic number.

It is an amenable number.

285031056 is an abundant number, since it is smaller than the sum of its proper divisors (451299296).

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

285031056 is a wasteful number, since it uses less digits than its factorization.

285031056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938158 (or 5938152 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 285031056 is about 16882.8627904156. The cubic root of 285031056 is about 658.1083391299.

The spelling of 285031056 in words is "two hundred eighty-five million, thirty-one thousand, fifty-six".