630321736 has 16 divisors (see below), whose sum is σ = 1289294640. Its totient is φ = 286509840.

The previous prime is 630321719. The next prime is 630321743. The reversal of 630321736 is 637123036.

It is a junction number, because it is equal to n+sod(n) for n = 630321698 and 630321707.

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 3 ways as a sum of consecutive naturals, for example, 3581286 + ... + 3581461.

It is an arithmetic number, because the mean of its divisors is an integer number (80580915).

Almost surely, 2^630321736 is an apocalyptic number.

It is an amenable number.

630321736 is an abundant number, since it is smaller than the sum of its proper divisors (658972904).

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

630321736 is a wasteful number, since it uses less digits than its factorization.

630321736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162764 (or 7162760 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 630321736 is about 25106.2091124885. The cubic root of 630321736 is about 857.4077956771.

The spelling of 630321736 in words is "six hundred thirty million, three hundred twenty-one thousand, seven hundred thirty-six".