636130336 has 96 divisors (see below), whose sum is σ = 1365154560. Its totient is φ = 290820096.

The previous prime is 636130333. The next prime is 636130373. The reversal of 636130336 is 633031636.

It is a junction number, because it is equal to n+sod(n) for n = 636130298 and 636130307.

It is not an unprimeable number, because it can be changed into a prime (636130331) 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, 3228990 + ... + 3229186.

It is an arithmetic number, because the mean of its divisors is an integer number (14220360).

Almost surely, 2^636130336 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 636130336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682577280).

636130336 is an abundant number, since it is smaller than the sum of its proper divisors (729024224).

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

636130336 is a wasteful number, since it uses less digits than its factorization.

636130336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 31.

The square root of 636130336 is about 25221.6243727481. The cubic root of 636130336 is about 860.0335014892.

The spelling of 636130336 in words is "six hundred thirty-six million, one hundred thirty thousand, three hundred thirty-six".