630289608 has 64 divisors (see below), whose sum is σ = 1770733440. Its totient is φ = 185501184.

The previous prime is 630289589. The next prime is 630289661. The reversal of 630289608 is 806982036.

It is a self number, because there is not a number n which added to its sum of digits gives 630289608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36741 + ... + 51092.

It is an arithmetic number, because the mean of its divisors is an integer number (27667710).

Almost surely, 2^630289608 is an apocalyptic number.

It is an amenable number.

630289608 is an abundant number, since it is smaller than the sum of its proper divisors (1140443832).

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

630289608 is a wasteful number, since it uses less digits than its factorization.

630289608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87878 (or 87874 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 630289608 is about 25105.5692626158. The cubic root of 630289608 is about 857.3932278439.

The spelling of 630289608 in words is "six hundred thirty million, two hundred eighty-nine thousand, six hundred eight".