331560320 has 128 divisors (see below), whose sum is σ = 975723840. Its totient is φ = 104914944.

The previous prime is 331560311. The next prime is 331560323. The reversal of 331560320 is 23065133.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×331560320³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331560323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55394 + ... + 61086.

Almost surely, 2^331560320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331560320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487861920).

331560320 is an abundant number, since it is smaller than the sum of its proper divisors (644163520).

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

331560320 is a wasteful number, since it uses less digits than its factorization.

331560320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732 (or 5720 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 331560320 is about 18208.7978735555. The cubic root of 331560320 is about 692.1297494685.

The spelling of 331560320 in words is "three hundred thirty-one million, five hundred sixty thousand, three hundred twenty".