285768224 has 24 divisors (see below), whose sum is σ = 642979008. Its totient is φ = 122472000.

The previous prime is 285768221. The next prime is 285768251. The reversal of 285768224 is 422867582.

It is a super-2 number, since 2×285768224² = 163326955696228352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (285768221) 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, 637652 + ... + 638099.

It is an arithmetic number, because the mean of its divisors is an integer number (26790792).

Almost surely, 2^285768224 is an apocalyptic number.

It is an amenable number.

285768224 is an abundant number, since it is smaller than the sum of its proper divisors (357210784).

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

285768224 is a wasteful number, since it uses less digits than its factorization.

285768224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275768 (or 1275760 counting only the distinct ones).

The product of its digits is 430080, while the sum is 44.

The square root of 285768224 is about 16904.6805352837. The cubic root of 285768224 is about 658.6751999055.

The spelling of 285768224 in words is "two hundred eighty-five million, seven hundred sixty-eight thousand, two hundred twenty-four".