636224214 has 32 divisors (see below), whose sum is σ = 1321920000. Its totient is φ = 203891744.

The previous prime is 636224143. The next prime is 636224219. The reversal of 636224214 is 412422636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636224219) 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, 33937 + ... + 49235.

It is an arithmetic number, because the mean of its divisors is an integer number (41310000).

Almost surely, 2^636224214 is an apocalyptic number.

636224214 is an abundant number, since it is smaller than the sum of its proper divisors (685695786).

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

636224214 is a wasteful number, since it uses less digits than its factorization.

636224214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15572.

The product of its digits is 13824, while the sum is 30.

The square root of 636224214 is about 25223.4853658252. The cubic root of 636224214 is about 860.0758063698.

The spelling of 636224214 in words is "six hundred thirty-six million, two hundred twenty-four thousand, two hundred fourteen".