285630288 has 20 divisors (see below), whose sum is σ = 737878368. Its totient is φ = 95210080.

The previous prime is 285630283. The next prime is 285630329. The reversal of 285630288 is 882036582.

285630288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×285630288² = 163169322845925888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285630283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2975268 + ... + 2975363.

Almost surely, 2^285630288 is an apocalyptic number.

It is an amenable number.

285630288 is an abundant number, since it is smaller than the sum of its proper divisors (452248080).

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

285630288 is a wasteful number, since it uses less digits than its factorization.

285630288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950642 (or 5950636 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 285630288 is about 16900.6002260275. The cubic root of 285630288 is about 658.5692053304.

The spelling of 285630288 in words is "two hundred eighty-five million, six hundred thirty thousand, two hundred eighty-eight".