22879636 has 24 divisors (see below), whose sum is σ = 43832264. Its totient is φ = 10385280.

The previous prime is 22879613. The next prime is 22879639. The reversal of 22879636 is 63697822.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 22752900 = 356^2 + 4770^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22879592 and 22879601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22879639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435 + ... + 6778.

Almost surely, 2^22879636 is an apocalyptic number.

22879636 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22879636 is a deficient number, since it is larger than the sum of its proper divisors (20952628).

22879636 is a wasteful number, since it uses less digits than its factorization.

22879636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7291 (or 7289 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 22879636 is about 4783.2662480778. The cubic root of 22879636 is about 283.8897442809.

The spelling of 22879636 in words is "twenty-two million, eight hundred seventy-nine thousand, six hundred thirty-six".