630424688 has 20 divisors (see below), whose sum is σ = 1223612160. Its totient is φ = 314653824.

The previous prime is 630424573. The next prime is 630424703. The reversal of 630424688 is 886424036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25520 + ... + 43727.

It is an arithmetic number, because the mean of its divisors is an integer number (61180608).

Almost surely, 2^630424688 is an apocalyptic number.

It is an amenable number.

630424688 is a deficient number, since it is larger than the sum of its proper divisors (593187472).

630424688 is a wasteful number, since it uses less digits than its factorization.

630424688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69824 (or 69818 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The square root of 630424688 is about 25108.2593582271. The cubic root of 630424688 is about 857.4544739775.

The spelling of 630424688 in words is "six hundred thirty million, four hundred twenty-four thousand, six hundred eighty-eight".