331908868 has 6 divisors (see below), whose sum is σ = 580840526. Its totient is φ = 165954432.

The previous prime is 331908851. The next prime is 331908887. The reversal of 331908868 is 868809133.

It can be written as a sum of positive squares in only one way, i.e., 329858244 + 2050624 = 18162^2 + 1432^2 .

It is a super-2 number, since 2×331908868² = 220326993314082848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41488605 + ... + 41488612.

Almost surely, 2^331908868 is an apocalyptic number.

It is an amenable number.

331908868 is a deficient number, since it is larger than the sum of its proper divisors (248931658).

331908868 is a wasteful number, since it uses less digits than its factorization.

331908868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82977221 (or 82977219 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 331908868 is about 18218.3662275189. The cubic root of 331908868 is about 692.3721950018.

The spelling of 331908868 in words is "three hundred thirty-one million, nine hundred eight thousand, eight hundred sixty-eight".