22801928 has 32 divisors (see below), whose sum is σ = 43824000. Its totient is φ = 11119680.

The previous prime is 22801903. The next prime is 22801937. The reversal of 22801928 is 82910822.

It is a junction number, because it is equal to n+sod(n) for n = 22801894 and 22801903.

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 7 ways as a sum of consecutive naturals, for example, 68723 + ... + 69053.

It is an arithmetic number, because the mean of its divisors is an integer number (1369500).

Almost surely, 2^22801928 is an apocalyptic number.

It is an amenable number.

22801928 is a deficient number, since it is larger than the sum of its proper divisors (21022072).

22801928 is a wasteful number, since it uses less digits than its factorization.

22801928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 22801928 is about 4775.1364378413. The cubic root of 22801928 is about 283.5679803218.

The spelling of 22801928 in words is "twenty-two million, eight hundred one thousand, nine hundred twenty-eight".