22544856 has 96 divisors (see below), whose sum is σ = 65622960. Its totient is φ = 6967296.

The previous prime is 22544831. The next prime is 22544867. The reversal of 22544856 is 65844522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 22544856.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138231 + ... + 138393.

Almost surely, 2^22544856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22544856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32811480).

22544856 is an abundant number, since it is smaller than the sum of its proper divisors (43078104).

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

22544856 is a wasteful number, since it uses less digits than its factorization.

22544856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 298 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 22544856 is about 4748.1423736025. The cubic root of 22544856 is about 282.4982890752.

The spelling of 22544856 in words is "twenty-two million, five hundred forty-four thousand, eight hundred fifty-six".