630251972 has 24 divisors (see below), whose sum is σ = 1261123584. Its totient is φ = 269975232.

The previous prime is 630251933. The next prime is 630251977. The reversal of 630251972 is 279152036.

It is not an unprimeable number, because it can be changed into a prime (630251977) 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, 71048 + ... + 79424.

It is an arithmetic number, because the mean of its divisors is an integer number (52546816).

Almost surely, 2^630251972 is an apocalyptic number.

It is an amenable number.

630251972 is an abundant number, since it is smaller than the sum of its proper divisors (630871612).

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

630251972 is a wasteful number, since it uses less digits than its factorization.

630251972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075 (or 11073 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 630251972 is about 25104.8196966240. The cubic root of 630251972 is about 857.3761618828.

The spelling of 630251972 in words is "six hundred thirty million, two hundred fifty-one thousand, nine hundred seventy-two".