22782928 has 20 divisors (see below), whose sum is σ = 50448160. Its totient is φ = 9764064.

The previous prime is 22782899. The next prime is 22782931. The reversal of 22782928 is 82928722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101598 + ... + 101821.

It is an arithmetic number, because the mean of its divisors is an integer number (2522408).

Almost surely, 2^22782928 is an apocalyptic number.

22782928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22782928 is an abundant number, since it is smaller than the sum of its proper divisors (27665232).

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

22782928 is a wasteful number, since it uses less digits than its factorization.

22782928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203434 (or 203428 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 22782928 is about 4773.1465512804. The cubic root of 22782928 is about 283.4891962119.

The spelling of 22782928 in words is "twenty-two million, seven hundred eighty-two thousand, nine hundred twenty-eight".