630663268 has 6 divisors (see below), whose sum is σ = 1103660726. Its totient is φ = 315331632.

The previous prime is 630663247. The next prime is 630663277. The reversal of 630663268 is 862366036.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 566535204 + 64128064 = 23802^2 + 8008^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 630663268.

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 as a sum of consecutive naturals, namely, 78832905 + ... + 78832912.

Almost surely, 2^630663268 is an apocalyptic number.

It is an amenable number.

630663268 is a deficient number, since it is larger than the sum of its proper divisors (472997458).

630663268 is a wasteful number, since it uses less digits than its factorization.

630663268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157665821 (or 157665819 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 630663268 is about 25113.0099350914. The cubic root of 630663268 is about 857.5626263027.

The spelling of 630663268 in words is "six hundred thirty million, six hundred sixty-three thousand, two hundred sixty-eight".