22236928 has 36 divisors (see below), whose sum is σ = 50732080. Its totient is φ = 9529344.

The previous prime is 22236887. The next prime is 22236943. The reversal of 22236928 is 82963222.

It is a junction number, because it is equal to n+sod(n) for n = 22236893 and 22236902.

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, 4413 + ... + 7996.

Almost surely, 2^22236928 is an apocalyptic number.

22236928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22236928 is an abundant number, since it is smaller than the sum of its proper divisors (28495152).

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

22236928 is an equidigital number, since it uses as much as digits as its factorization.

22236928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12432 (or 12418 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 22236928 is about 4715.6047332235. The cubic root of 22236928 is about 281.2062247590.

The spelling of 22236928 in words is "twenty-two million, two hundred thirty-six thousand, nine hundred twenty-eight".