634130660 has 12 divisors (see below), whose sum is σ = 1331674428. Its totient is φ = 253652256.

The previous prime is 634130657. The next prime is 634130663. The reversal of 634130660 is 66031436.

It is an interprime number because it is at equal distance from previous prime (634130657) and next prime (634130663).

It can be written as a sum of positive squares in 2 ways, for example, as 262180864 + 371949796 = 16192^2 + 19286^2 .

It is not an unprimeable number, because it can be changed into a prime (634130663) 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, 15853247 + ... + 15853286.

It is an arithmetic number, because the mean of its divisors is an integer number (110972869).

Almost surely, 2^634130660 is an apocalyptic number.

It is an amenable number.

634130660 is an abundant number, since it is smaller than the sum of its proper divisors (697543768).

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

634130660 is a wasteful number, since it uses less digits than its factorization.

634130660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31706542 (or 31706540 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 634130660 is about 25181.9510761180. The cubic root of 634130660 is about 859.1313836578.

The spelling of 634130660 in words is "six hundred thirty-four million, one hundred thirty thousand, six hundred sixty".