631402968 has 32 divisors (see below), whose sum is σ = 1804008960. Its totient is φ = 180400800.

The previous prime is 631402963. The next prime is 631402991. The reversal of 631402968 is 869204136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631402963) 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, 1879008 + ... + 1879343.

It is an arithmetic number, because the mean of its divisors is an integer number (56375280).

Almost surely, 2^631402968 is an apocalyptic number.

It is an amenable number.

631402968 is an abundant number, since it is smaller than the sum of its proper divisors (1172605992).

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

631402968 is a wasteful number, since it uses less digits than its factorization.

631402968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758367 (or 3758363 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 631402968 is about 25127.7330453823. The cubic root of 631402968 is about 857.8977714662.

The spelling of 631402968 in words is "six hundred thirty-one million, four hundred two thousand, nine hundred sixty-eight".