22816928 has 24 divisors (see below), whose sum is σ = 45661140. Its totient is φ = 11220480.

The previous prime is 22816877. The next prime is 22816933. The reversal of 22816928 is 82961822.

It can be written as a sum of positive squares in 2 ways, for example, as 22771984 + 44944 = 4772^2 + 212^2 .

It is a super-2 number, since 2×22816928² = 1041224406714368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22816891 and 22816900.

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, 3893 + ... + 7796.

Almost surely, 2^22816928 is an apocalyptic number.

It is an amenable number.

22816928 is an abundant number, since it is smaller than the sum of its proper divisors (22844212).

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

22816928 is a wasteful number, since it uses less digits than its factorization.

22816928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11760 (or 11752 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 22816928 is about 4776.7068153698. The cubic root of 22816928 is about 283.6301473943.

The spelling of 22816928 in words is "twenty-two million, eight hundred sixteen thousand, nine hundred twenty-eight".