331645360 has 20 divisors (see below), whose sum is σ = 771075648. Its totient is φ = 132658112.

The previous prime is 331645343. The next prime is 331645381. The reversal of 331645360 is 63546133.

331645360 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

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 in 3 ways as a sum of consecutive naturals, for example, 2072704 + ... + 2072863.

Almost surely, 2^331645360 is an apocalyptic number.

It is an amenable number.

331645360 is an abundant number, since it is smaller than the sum of its proper divisors (439430288).

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

331645360 is a wasteful number, since it uses less digits than its factorization.

331645360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4145580 (or 4145574 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 331645360 is about 18211.1328587762. The cubic root of 331645360 is about 692.1889178701.

The spelling of 331645360 in words is "three hundred thirty-one million, six hundred forty-five thousand, three hundred sixty".