630436636 has 48 divisors (see below), whose sum is σ = 1209793536. Its totient is φ = 286239744.

The previous prime is 630436633. The next prime is 630436657. The reversal of 630436636 is 636634036.

630436636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 630436595 and 630436604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630436633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318546 + ... + 320518.

It is an arithmetic number, because the mean of its divisors is an integer number (25204032).

Almost surely, 2^630436636 is an apocalyptic number.

It is an amenable number.

630436636 is a deficient number, since it is larger than the sum of its proper divisors (579356900).

630436636 is a wasteful number, since it uses less digits than its factorization.

630436636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 37.

The square root of 630436636 is about 25108.4972867752. The cubic root of 630436636 is about 857.4598908557.

The spelling of 630436636 in words is "six hundred thirty million, four hundred thirty-six thousand, six hundred thirty-six".