22445292 has 12 divisors (see below), whose sum is σ = 52372376. Its totient is φ = 7481760.

The previous prime is 22445281. The next prime is 22445299. The reversal of 22445292 is 29254422.

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

It is a super-2 number, since 2×22445292² = 1007582265930528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22445299) 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, 935209 + ... + 935232.

Almost surely, 2^22445292 is an apocalyptic number.

It is an amenable number.

22445292 is an abundant number, since it is smaller than the sum of its proper divisors (29927084).

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

22445292 is a wasteful number, since it uses less digits than its factorization.

22445292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870448 (or 1870446 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 22445292 is about 4737.6462510407. The cubic root of 22445292 is about 282.0818131920.

The spelling of 22445292 in words is "twenty-two million, four hundred forty-five thousand, two hundred ninety-two".