331698680 has 32 divisors (see below), whose sum is σ = 751278240. Its totient is φ = 131798400.

The previous prime is 331698677. The next prime is 331698683. The reversal of 331698680 is 86896133.

It is an interprime number because it is at equal distance from previous prime (331698677) and next prime (331698683).

It is a super-2 number, since 2×331698680² = 220048028627484800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331698683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21419 + ... + 33498.

It is an arithmetic number, because the mean of its divisors is an integer number (23477445).

Almost surely, 2^331698680 is an apocalyptic number.

It is an amenable number.

331698680 is an abundant number, since it is smaller than the sum of its proper divisors (419579560).

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

331698680 is a wasteful number, since it uses less digits than its factorization.

331698680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55079 (or 55075 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 331698680 is about 18212.5967396195. The cubic root of 331698680 is about 692.2260112434.

The spelling of 331698680 in words is "three hundred thirty-one million, six hundred ninety-eight thousand, six hundred eighty".