630433656 has 48 divisors (see below), whose sum is σ = 1709199960. Its totient is φ = 209926080.

The previous prime is 630433631. The next prime is 630433669. The reversal of 630433656 is 656334036.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 630433656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74691 + ... + 82701.

Almost surely, 2^630433656 is an apocalyptic number.

It is an amenable number.

630433656 is an abundant number, since it is smaller than the sum of its proper divisors (1078766304).

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

630433656 is a wasteful number, since it uses less digits than its factorization.

630433656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9116 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

The square root of 630433656 is about 25108.4379442450. The cubic root of 630433656 is about 857.4585398162.

The spelling of 630433656 in words is "six hundred thirty million, four hundred thirty-three thousand, six hundred fifty-six".