522981320 has 32 divisors (see below), whose sum is σ = 1188847800. Its totient is φ = 207034368.

The previous prime is 522981313. The next prime is 522981359. The reversal of 522981320 is 23189225.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 515017636 + 7963684 = 22694^2 + 2822^2 .

It is a super-2 number, since 2×522981320² = 547018922137884800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63515 + ... + 71274.

Almost surely, 2^522981320 is an apocalyptic number.

It is an amenable number.

522981320 is an abundant number, since it is smaller than the sum of its proper divisors (665866480).

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

522981320 is a wasteful number, since it uses less digits than its factorization.

522981320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134897 (or 134893 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 522981320 is about 22868.7848387272. The cubic root of 522981320 is about 805.6790279086.

The spelling of 522981320 in words is "five hundred twenty-two million, nine hundred eighty-one thousand, three hundred twenty".