630788036 has 12 divisors (see below), whose sum is σ = 1119001212. Its totient is φ = 311073408.

The previous prime is 630788029. The next prime is 630788063. The reversal of 630788036 is 630887036.

It can be written as a sum of positive squares in 2 ways, for example, as 429318400 + 201469636 = 20720^2 + 14194^2 .

It is a junction number, because it is equal to n+sod(n) for n = 630787984 and 630788002.

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, 1079825 + ... + 1080408.

It is an arithmetic number, because the mean of its divisors is an integer number (93250101).

Almost surely, 2^630788036 is an apocalyptic number.

It is an amenable number.

630788036 is a deficient number, since it is larger than the sum of its proper divisors (488213176).

630788036 is a wasteful number, since it uses less digits than its factorization.

630788036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160310 (or 2160308 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 630788036 is about 25115.4939429827. The cubic root of 630788036 is about 857.6191748730.

The spelling of 630788036 in words is "six hundred thirty million, seven hundred eighty-eight thousand, thirty-six".