331630936 has 32 divisors (see below), whose sum is σ = 765303840. Its totient is φ = 131194368.

The previous prime is 331630927. The next prime is 331630967. The reversal of 331630936 is 639036133.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227041 + ... + 228496.

It is an arithmetic number, because the mean of its divisors is an integer number (23915745).

Almost surely, 2^331630936 is an apocalyptic number.

It is an amenable number.

331630936 is an abundant number, since it is smaller than the sum of its proper divisors (433672904).

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

331630936 is a wasteful number, since it uses less digits than its factorization.

331630936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455563 (or 455559 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 34.

The square root of 331630936 is about 18210.7368329785. The cubic root of 331630936 is about 692.1788827755.

The spelling of 331630936 in words is "three hundred thirty-one million, six hundred thirty thousand, nine hundred thirty-six".