531339690 has 64 divisors (see below), whose sum is σ = 1504419840. Its totient is φ = 117529920.

The previous prime is 531339667. The next prime is 531339703. The reversal of 531339690 is 96933135.

It is a super-2 number, since 2×531339690² = 564643732338592200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34300 + ... + 47319.

It is an arithmetic number, because the mean of its divisors is an integer number (23506560).

Almost surely, 2^531339690 is an apocalyptic number.

531339690 is an abundant number, since it is smaller than the sum of its proper divisors (973080150).

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

531339690 is a wasteful number, since it uses less digits than its factorization.

531339690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81667.

The product of its (nonzero) digits is 65610, while the sum is 39.

The square root of 531339690 is about 23050.8067103952. The cubic root of 531339690 is about 809.9485259166.

The spelling of 531339690 in words is "five hundred thirty-one million, three hundred thirty-nine thousand, six hundred ninety".