331678690 has 32 divisors (see below), whose sum is σ = 683464320. Its totient is φ = 113526144.

The previous prime is 331678681. The next prime is 331678691. The reversal of 331678690 is 96876133.

It is a super-2 number, since 2×331678690² = 220021506800232200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331678691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41326 + ... + 48694.

It is an arithmetic number, because the mean of its divisors is an integer number (21358260).

Almost surely, 2^331678690 is an apocalyptic number.

331678690 is an abundant number, since it is smaller than the sum of its proper divisors (351785630).

331678690 is a wasteful number, since it uses less digits than its factorization.

331678690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8026.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 331678690 is about 18212.0479353641. The cubic root of 331678690 is about 692.2121051726.

The spelling of 331678690 in words is "three hundred thirty-one million, six hundred seventy-eight thousand, six hundred ninety".