522897140 has 24 divisors (see below), whose sum is σ = 1098560232. Its totient is φ = 209068160.

The previous prime is 522897139. The next prime is 522897187. The reversal of 522897140 is 41798225.

It can be written as a sum of positive squares in 4 ways, for example, as 217975696 + 304921444 = 14764^2 + 17462^2 .

It is a junction number, because it is equal to n+sod(n) for n = 522897094 and 522897103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60362 + ... + 68478.

It is an arithmetic number, because the mean of its divisors is an integer number (45773343).

Almost surely, 2^522897140 is an apocalyptic number.

It is an amenable number.

522897140 is an abundant number, since it is smaller than the sum of its proper divisors (575663092).

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

522897140 is a wasteful number, since it uses less digits than its factorization.

522897140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11347 (or 11345 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 522897140 is about 22866.9442645929. The cubic root of 522897140 is about 805.6357977477.

The spelling of 522897140 in words is "five hundred twenty-two million, eight hundred ninety-seven thousand, one hundred forty".