630755768 has 32 divisors (see below), whose sum is σ = 1250418000. Its totient is φ = 297457920.

The previous prime is 630755759. The next prime is 630755813. The reversal of 630755768 is 867557036.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 25748 + ... + 43868.

Almost surely, 2^630755768 is an apocalyptic number.

It is an amenable number.

630755768 is a deficient number, since it is larger than the sum of its proper divisors (619662232).

630755768 is a wasteful number, since it uses less digits than its factorization.

630755768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18375 (or 18371 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The square root of 630755768 is about 25114.8515424639. The cubic root of 630755768 is about 857.6045507702.

The spelling of 630755768 in words is "six hundred thirty million, seven hundred fifty-five thousand, seven hundred sixty-eight".