630641804 has 24 divisors (see below), whose sum is σ = 1226859648. Its totient is φ = 281675520.

The previous prime is 630641771. The next prime is 630641819. The reversal of 630641804 is 408146036.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193997 + ... + 197220.

It is an arithmetic number, because the mean of its divisors is an integer number (51119152).

Almost surely, 2^630641804 is an apocalyptic number.

It is an amenable number.

630641804 is a deficient number, since it is larger than the sum of its proper divisors (596217844).

630641804 is a wasteful number, since it uses less digits than its factorization.

630641804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391265 (or 391263 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 630641804 is about 25112.5825832390. The cubic root of 630641804 is about 857.5528974273.

The spelling of 630641804 in words is "six hundred thirty million, six hundred forty-one thousand, eight hundred four".