631330980 has 48 divisors (see below), whose sum is σ = 2020260480. Its totient is φ = 144304128.

The previous prime is 631330967. The next prime is 631330991. The reversal of 631330980 is 89033136.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751165 + ... + 752004.

It is an arithmetic number, because the mean of its divisors is an integer number (42088760).

Almost surely, 2^631330980 is an apocalyptic number.

631330980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

631330980 is an abundant number, since it is smaller than the sum of its proper divisors (1388929500).

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

631330980 is a wasteful number, since it uses less digits than its factorization.

631330980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503188 (or 1503186 counting only the distinct ones).

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

The square root of 631330980 is about 25126.3005633539. The cubic root of 631330980 is about 857.8651664606.

The spelling of 631330980 in words is "six hundred thirty-one million, three hundred thirty thousand, nine hundred eighty".