331001072 has 40 divisors (see below), whose sum is σ = 658886400. Its totient is φ = 161008832.

The previous prime is 331000973. The next prime is 331001081. The reversal of 331001072 is 270100133.

It is a self number, because there is not a number n which added to its sum of digits gives 331001072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133379 + ... + 135837.

It is an arithmetic number, because the mean of its divisors is an integer number (16472160).

Almost surely, 2^331001072 is an apocalyptic number.

It is an amenable number.

331001072 is a deficient number, since it is larger than the sum of its proper divisors (327885328).

331001072 is a wasteful number, since it uses less digits than its factorization.

331001072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693 (or 2687 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 331001072 is about 18193.4348598609. The cubic root of 331001072 is about 691.7403884324.

The spelling of 331001072 in words is "three hundred thirty-one million, one thousand, seventy-two".