636226112 has 28 divisors (see below), whose sum is σ = 1276708140. Its totient is φ = 314535936.

The previous prime is 636226091. The next prime is 636226117. The reversal of 636226112 is 211622636.

It can be written as a sum of positive squares in 2 ways, for example, as 110166016 + 526060096 = 10496^2 + 22936^2 .

It is not an unprimeable number, because it can be changed into a prime (636226117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50153 + ... + 61544.

Almost surely, 2^636226112 is an apocalyptic number.

It is an amenable number.

636226112 is an abundant number, since it is smaller than the sum of its proper divisors (640482028).

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

636226112 is a wasteful number, since it uses less digits than its factorization.

636226112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111798 (or 111788 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 636226112 is about 25223.5229894636. The cubic root of 636226112 is about 860.0766616355.

Adding to 636226112 its reverse (211622636), we get a palindrome (847848748).

The spelling of 636226112 in words is "six hundred thirty-six million, two hundred twenty-six thousand, one hundred twelve".