630736844 has 12 divisors (see below), whose sum is σ = 1161883800. Its totient is φ = 298770048.

The previous prime is 630736829. The next prime is 630736849. The reversal of 630736844 is 448637036.

It is not an unprimeable number, because it can be changed into a prime (630736849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4149509 + ... + 4149660.

It is an arithmetic number, because the mean of its divisors is an integer number (96823650).

Almost surely, 2^630736844 is an apocalyptic number.

It is an amenable number.

630736844 is a deficient number, since it is larger than the sum of its proper divisors (531146956).

630736844 is a wasteful number, since it uses less digits than its factorization.

630736844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8299192 (or 8299190 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 630736844 is about 25114.4747904470. The cubic root of 630736844 is about 857.5959740375.

The spelling of 630736844 in words is "six hundred thirty million, seven hundred thirty-six thousand, eight hundred forty-four".