331042992 has 80 divisors (see below), whose sum is σ = 986127360. Its totient is φ = 93735936.

The previous prime is 331042991. The next prime is 331042993. The reversal of 331042992 is 299240133.

It is an interprime number because it is at equal distance from previous prime (331042991) and next prime (331042993).

It is not an unprimeable number, because it can be changed into a prime (331042991) 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, 33609 + ... + 42327.

It is an arithmetic number, because the mean of its divisors is an integer number (12326592).

Almost surely, 2^331042992 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 331042992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493063680).

331042992 is an abundant number, since it is smaller than the sum of its proper divisors (655084368).

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

331042992 is a wasteful number, since it uses less digits than its factorization.

331042992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8850 (or 8844 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 331042992 is about 18194.5868873135. The cubic root of 331042992 is about 691.7695892774.

The spelling of 331042992 in words is "three hundred thirty-one million, forty-two thousand, nine hundred ninety-two".