331772980 has 96 divisors (see below), whose sum is σ = 877992192. Its totient is φ = 102297600.

The previous prime is 331772977. The next prime is 331773017. The reversal of 331772980 is 89277133.

It is a super-2 number, since 2×331772980² = 220146620516160800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148270 + ... + 150490.

It is an arithmetic number, because the mean of its divisors is an integer number (9145752).

Almost surely, 2^331772980 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 331772980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438996096).

331772980 is an abundant number, since it is smaller than the sum of its proper divisors (546219212).

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

331772980 is a wasteful number, since it uses less digits than its factorization.

331772980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 331772980 is about 18214.6364223939. The cubic root of 331772980 is about 692.2776932427.

The spelling of 331772980 in words is "three hundred thirty-one million, seven hundred seventy-two thousand, nine hundred eighty".