636224104 has 16 divisors (see below), whose sum is σ = 1193415300. Its totient is φ = 317980032.

The previous prime is 636224093. The next prime is 636224107. The reversal of 636224104 is 401422636.

It can be written as a sum of positive squares in 2 ways, for example, as 532224900 + 103999204 = 23070^2 + 10198^2 .

It is a super-2 number, since 2×636224104² = 809562221021205632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (636224107) 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, 5742 + ... + 36130.

Almost surely, 2^636224104 is an apocalyptic number.

It is an amenable number.

636224104 is a deficient number, since it is larger than the sum of its proper divisors (557191196).

636224104 is a wasteful number, since it uses less digits than its factorization.

636224104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33012 (or 33008 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 636224104 is about 25223.4831853176. The cubic root of 636224104 is about 860.0757568022.

The spelling of 636224104 in words is "six hundred thirty-six million, two hundred twenty-four thousand, one hundred four".