630960520 has 16 divisors (see below), whose sum is σ = 1419661260. Its totient is φ = 252384192.

The previous prime is 630960509. The next prime is 630960523. The reversal of 630960520 is 25069036.

It can be written as a sum of positive squares in 2 ways, for example, as 590587204 + 40373316 = 24302^2 + 6354^2 .

It is a super-2 number, since 2×630960520² = 796222355597340800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630960523) 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, 7886967 + ... + 7887046.

Almost surely, 2^630960520 is an apocalyptic number.

It is an amenable number.

630960520 is an abundant number, since it is smaller than the sum of its proper divisors (788700740).

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

630960520 is a wasteful number, since it uses less digits than its factorization.

630960520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774024 (or 15774020 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 630960520 is about 25118.9275248765. The cubic root of 630960520 is about 857.6973374762.

The spelling of 630960520 in words is "six hundred thirty million, nine hundred sixty thousand, five hundred twenty".