636214124 has 48 divisors (see below), whose sum is σ = 1377632256. Its totient is φ = 250344000.

The previous prime is 636214123. The next prime is 636214127. The reversal of 636214124 is 421412636.

It is not an unprimeable number, because it can be changed into a prime (636214123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64949 + ... + 74099.

It is an arithmetic number, because the mean of its divisors is an integer number (28700672).

Almost surely, 2^636214124 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 636214124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688816128).

636214124 is an abundant number, since it is smaller than the sum of its proper divisors (741418132).

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

636214124 is a wasteful number, since it uses less digits than its factorization.

636214124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9366 (or 9364 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 636214124 is about 25223.2853530225. The cubic root of 636214124 is about 860.0712596442.

The spelling of 636214124 in words is "six hundred thirty-six million, two hundred fourteen thousand, one hundred twenty-four".