22253844 has 12 divisors (see below), whose sum is σ = 51925664. Its totient is φ = 7417944.

The previous prime is 22253843. The next prime is 22253863. The reversal of 22253844 is 44835222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22253843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927232 + ... + 927255.

Almost surely, 2^22253844 is an apocalyptic number.

It is an amenable number.

22253844 is an abundant number, since it is smaller than the sum of its proper divisors (29671820).

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

22253844 is a wasteful number, since it uses less digits than its factorization.

22253844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854494 (or 1854492 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 22253844 is about 4717.3980116161. The cubic root of 22253844 is about 281.2775127653.

The spelling of 22253844 in words is "twenty-two million, two hundred fifty-three thousand, eight hundred forty-four".