122636668 has 24 divisors (see below), whose sum is σ = 267571584. Its totient is φ = 47780400.

The previous prime is 122636653. The next prime is 122636669. The reversal of 122636668 is 866636221.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 122636668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122636669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198778 + ... + 199393.

It is an arithmetic number, because the mean of its divisors is an integer number (11148816).

Almost surely, 2^122636668 is an apocalyptic number.

It is an amenable number.

122636668 is an abundant number, since it is smaller than the sum of its proper divisors (144934916).

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

122636668 is a wasteful number, since it uses less digits than its factorization.

122636668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398193 (or 398191 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 122636668 is about 11074.1441204275. The cubic root of 122636668 is about 496.8288204277.

The spelling of 122636668 in words is "one hundred twenty-two million, six hundred thirty-six thousand, six hundred sixty-eight".