22879644 has 12 divisors (see below), whose sum is σ = 53385864. Its totient is φ = 7626544.

The previous prime is 22879639. The next prime is 22879657. The reversal of 22879644 is 44697822.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22879596 and 22879605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953307 + ... + 953330.

It is an arithmetic number, because the mean of its divisors is an integer number (4448822).

Almost surely, 2^22879644 is an apocalyptic number.

It is an amenable number.

22879644 is an abundant number, since it is smaller than the sum of its proper divisors (30506220).

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

22879644 is a wasteful number, since it uses less digits than its factorization.

22879644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906644 (or 1906642 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 22879644 is about 4783.2670843264. The cubic root of 22879644 is about 283.8897773688.

The spelling of 22879644 in words is "twenty-two million, eight hundred seventy-nine thousand, six hundred forty-four".