630311924 has 48 divisors (see below), whose sum is σ = 1301287680. Its totient is φ = 263900160.

The previous prime is 630311911. The next prime is 630311939. The reversal of 630311924 is 429113036.

It is a congruent number.

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, 26192 + ... + 44120.

It is an arithmetic number, because the mean of its divisors is an integer number (27110160).

Almost surely, 2^630311924 is an apocalyptic number.

It is an amenable number.

630311924 is an abundant number, since it is smaller than the sum of its proper divisors (670975756).

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

630311924 is a wasteful number, since it uses less digits than its factorization.

630311924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18008 (or 18006 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 630311924 is about 25106.0137019002. The cubic root of 630311924 is about 857.4033466640.

The spelling of 630311924 in words is "six hundred thirty million, three hundred eleven thousand, nine hundred twenty-four".