285213684 has 48 divisors (see below), whose sum is σ = 761801600. Its totient is φ = 81357696.

The previous prime is 285213667. The next prime is 285213689. The reversal of 285213684 is 486312582.

285213684 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285213689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57162 + ... + 61950.

Almost surely, 2^285213684 is an apocalyptic number.

It is an amenable number.

285213684 is an abundant number, since it is smaller than the sum of its proper divisors (476587916).

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

285213684 is a wasteful number, since it uses less digits than its factorization.

285213684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5512 (or 5510 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 285213684 is about 16888.2706041797. The cubic root of 285213684 is about 658.2488657460.

The spelling of 285213684 in words is "two hundred eighty-five million, two hundred thirteen thousand, six hundred eighty-four".