331351072 has 24 divisors (see below), whose sum is σ = 702528876. Its totient is φ = 152931072.

The previous prime is 331351067. The next prime is 331351093. The reversal of 331351072 is 270153133.

It can be written as a sum of positive squares in 2 ways, for example, as 273042576 + 58308496 = 16524^2 + 7636^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397843 + ... + 398674.

Almost surely, 2^331351072 is an apocalyptic number.

331351072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331351072 is an abundant number, since it is smaller than the sum of its proper divisors (371177804).

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

331351072 is a wasteful number, since it uses less digits than its factorization.

331351072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796540 (or 796532 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 331351072 is about 18203.0511728117. The cubic root of 331351072 is about 691.9841176036.

The spelling of 331351072 in words is "three hundred thirty-one million, three hundred fifty-one thousand, seventy-two".