630930312 has 24 divisors (see below), whose sum is σ = 1708769790. Its totient is φ = 210310080.

The previous prime is 630930277. The next prime is 630930323. The reversal of 630930312 is 213039036.

630930312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 472019076 + 158911236 = 21726^2 + 12606^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4381389 + ... + 4381532.

Almost surely, 2^630930312 is an apocalyptic number.

It is an amenable number.

630930312 is an abundant number, since it is smaller than the sum of its proper divisors (1077839478).

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

630930312 is a wasteful number, since it uses less digits than its factorization.

630930312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8762933 (or 8762926 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

The square root of 630930312 is about 25118.3262181221. The cubic root of 630930312 is about 857.6836494911.

Adding to 630930312 its reverse (213039036), we get a palindrome (843969348).

The spelling of 630930312 in words is "six hundred thirty million, nine hundred thirty thousand, three hundred twelve".