22505268 has 12 divisors (see below), whose sum is σ = 52512320. Its totient is φ = 7501752.

The previous prime is 22505251. The next prime is 22505317. The reversal of 22505268 is 86250522.

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

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, 937708 + ... + 937731.

Almost surely, 2^22505268 is an apocalyptic number.

It is an amenable number.

22505268 is an abundant number, since it is smaller than the sum of its proper divisors (30007052).

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

22505268 is a wasteful number, since it uses less digits than its factorization.

22505268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1875446 (or 1875444 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 22505268 is about 4743.9717537102. The cubic root of 22505268 is about 282.3328397352.

The spelling of 22505268 in words is "twenty-two million, five hundred five thousand, two hundred sixty-eight".