331945884 has 96 divisors (see below), whose sum is σ = 917280000. Its totient is φ = 103508928.

The previous prime is 331945883. The next prime is 331945891. The reversal of 331945884 is 488549133.

It is a super-2 number, since 2×331945884² = 220376139809082912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331945883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169342 + ... + 171290.

It is an arithmetic number, because the mean of its divisors is an integer number (9555000).

Almost surely, 2^331945884 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 331945884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458640000).

331945884 is an abundant number, since it is smaller than the sum of its proper divisors (585334116).

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

331945884 is a wasteful number, since it uses less digits than its factorization.

331945884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064 (or 2056 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 331945884 is about 18219.3820970965. The cubic root of 331945884 is about 692.3979328864.

The spelling of 331945884 in words is "three hundred thirty-one million, nine hundred forty-five thousand, eight hundred eighty-four".