331139880 has 128 divisors (see below), whose sum is σ = 1108080000. Its totient is φ = 87962112.

The previous prime is 331139873. The next prime is 331139911. The reversal of 331139880 is 88931133.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 408916 + ... + 409724.

It is an arithmetic number, because the mean of its divisors is an integer number (8656875).

Almost surely, 2^331139880 is an apocalyptic number.

331139880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331139880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554040000).

331139880 is an abundant number, since it is smaller than the sum of its proper divisors (776940120).

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

331139880 is a wasteful number, since it uses less digits than its factorization.

331139880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 331139880 is about 18197.2492426740. The cubic root of 331139880 is about 691.8370705773.

The spelling of 331139880 in words is "three hundred thirty-one million, one hundred thirty-nine thousand, eight hundred eighty".