636960032 has 48 divisors (see below), whose sum is σ = 1317964032. Its totient is φ = 302641920.

The previous prime is 636960017. The next prime is 636960041. The reversal of 636960032 is 230069636.

It is a junction number, because it is equal to n+sod(n) for n = 636959974 and 636960001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44657 + ... + 57167.

It is an arithmetic number, because the mean of its divisors is an integer number (27457584).

Almost surely, 2^636960032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 636960032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658982016).

636960032 is an abundant number, since it is smaller than the sum of its proper divisors (681004000).

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

636960032 is a wasteful number, since it uses less digits than its factorization.

636960032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12601 (or 12593 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 35.

The square root of 636960032 is about 25238.0671209187. The cubic root of 636960032 is about 860.4072489792.

The spelling of 636960032 in words is "six hundred thirty-six million, nine hundred sixty thousand, thirty-two".