22364979 has 64 divisors (see below), whose sum is σ = 39997440. Its totient is φ = 10782720.

The previous prime is 22364977. The next prime is 22364987. The reversal of 22364979 is 97946322.

It is a happy number.

It is not a de Polignac number, because 22364979 - 2¹ = 22364977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22364979.

It is not an unprimeable number, because it can be changed into a prime (22364977) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 283062 + ... + 283140.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^22364979 is an apocalyptic number.

22364979 is a deficient number, since it is larger than the sum of its proper divisors (17632461).

22364979 is a wasteful number, since it uses less digits than its factorization.

22364979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180.

The product of its digits is 163296, while the sum is 42.

The square root of 22364979 is about 4729.1626108646. The cubic root of 22364979 is about 281.7449658413.

The spelling of 22364979 in words is "twenty-two million, three hundred sixty-four thousand, nine hundred seventy-nine".