285031964 has 12 divisors (see below), whose sum is σ = 570063984. Its totient is φ = 122156544.

The previous prime is 285031951. The next prime is 285031969. The reversal of 285031964 is 469130582.

It is a happy number.

285031964 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285031969) 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, 5089829 + ... + 5089884.

It is an arithmetic number, because the mean of its divisors is an integer number (47505332).

Almost surely, 2^285031964 is an apocalyptic number.

It is an amenable number.

285031964 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

285031964 is a wasteful number, since it uses less digits than its factorization.

285031964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179724 (or 10179722 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 285031964 is about 16882.8896815681. The cubic root of 285031964 is about 658.1090379564.

The spelling of 285031964 in words is "two hundred eighty-five million, thirty-one thousand, nine hundred sixty-four".