636325480 has 64 divisors (see below), whose sum is σ = 1671114240. Its totient is φ = 213522432.

The previous prime is 636325471. The next prime is 636325483. The reversal of 636325480 is 84523636.

It is not an unprimeable number, because it can be changed into a prime (636325483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11017 + ... + 37336.

It is an arithmetic number, because the mean of its divisors is an integer number (26111160).

Almost surely, 2^636325480 is an apocalyptic number.

It is an amenable number.

636325480 is an abundant number, since it is smaller than the sum of its proper divisors (1034788760).

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

636325480 is a wasteful number, since it uses less digits than its factorization.

636325480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48418 (or 48414 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 636325480 is about 25225.4926611949. The cubic root of 636325480 is about 860.1214358896.

The spelling of 636325480 in words is "six hundred thirty-six million, three hundred twenty-five thousand, four hundred eighty".