285252804 has 36 divisors (see below), whose sum is σ = 722235696. Its totient is φ = 94928688.

The previous prime is 285252791. The next prime is 285252811. The reversal of 285252804 is 408252582.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16987 + ... + 29309.

Almost surely, 2^285252804 is an apocalyptic number.

It is an amenable number.

285252804 is an abundant number, since it is smaller than the sum of its proper divisors (436982892).

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

285252804 is a wasteful number, since it uses less digits than its factorization.

285252804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12976 (or 12971 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 285252804 is about 16889.4287647629. The cubic root of 285252804 is about 658.2789595784.

It can be divided in two parts, 28525 and 2804, that added together give a square (31329 = 177²).

The spelling of 285252804 in words is "two hundred eighty-five million, two hundred fifty-two thousand, eight hundred four".