285813312 has 56 divisors (see below), whose sum is σ = 770510016. Its totient is φ = 93470208.

The previous prime is 285813301. The next prime is 285813317. The reversal of 285813312 is 213318582.

285813312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (285813317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3868 + ... + 24219.

Almost surely, 2^285813312 is an apocalyptic number.

It is an amenable number.

285813312 is an abundant number, since it is smaller than the sum of its proper divisors (484696704).

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

285813312 is a wasteful number, since it uses less digits than its factorization.

285813312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28155 (or 28145 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 285813312 is about 16906.0140778363. The cubic root of 285813312 is about 658.7098396160.

The spelling of 285813312 in words is "two hundred eighty-five million, eight hundred thirteen thousand, three hundred twelve".