630253746 has 24 divisors (see below), whose sum is σ = 1409601024. Its totient is φ = 203307480.

The previous prime is 630253711. The next prime is 630253783. The reversal of 630253746 is 647352036.

It is a self number, because there is not a number n which added to its sum of digits gives 630253746.

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 11 ways as a sum of consecutive naturals, for example, 564186 + ... + 565301.

It is an arithmetic number, because the mean of its divisors is an integer number (58733376).

Almost surely, 2^630253746 is an apocalyptic number.

630253746 is an abundant number, since it is smaller than the sum of its proper divisors (779347278).

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

630253746 is a wasteful number, since it uses less digits than its factorization.

630253746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129526 (or 1129523 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The square root of 630253746 is about 25104.8550284601. The cubic root of 630253746 is about 857.3769663145.

The spelling of 630253746 in words is "six hundred thirty million, two hundred fifty-three thousand, seven hundred forty-six".