285944772 has 12 divisors (see below), whose sum is σ = 667204496. Its totient is φ = 95314920.

The previous prime is 285944749. The next prime is 285944819. The reversal of 285944772 is 277449582.

It is a tau number, because it is divible by the number of its divisors (12).

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, 11914354 + ... + 11914377.

Almost surely, 2^285944772 is an apocalyptic number.

It is an amenable number.

285944772 is an abundant number, since it is smaller than the sum of its proper divisors (381259724).

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

285944772 is a wasteful number, since it uses less digits than its factorization.

285944772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23828738 (or 23828736 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 285944772 is about 16909.9015964020. The cubic root of 285944772 is about 658.8108154616.

The spelling of 285944772 in words is "two hundred eighty-five million, nine hundred forty-four thousand, seven hundred seventy-two".