331112988 has 24 divisors (see below), whose sum is σ = 858441360. Its totient is φ = 110370960.

The previous prime is 331112983. The next prime is 331112989. The reversal of 331112988 is 889211133.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331112983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532823 + ... + 1533038.

It is an arithmetic number, because the mean of its divisors is an integer number (35768390).

Almost surely, 2^331112988 is an apocalyptic number.

It is an amenable number.

331112988 is an abundant number, since it is smaller than the sum of its proper divisors (527328372).

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

331112988 is a wasteful number, since it uses less digits than its factorization.

331112988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065874 (or 3065866 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 331112988 is about 18196.5103247848. The cubic root of 331112988 is about 691.8183419501.

The spelling of 331112988 in words is "three hundred thirty-one million, one hundred twelve thousand, nine hundred eighty-eight".