22243928 has 32 divisors (see below), whose sum is σ = 49312800. Its totient is φ = 9203712.

The previous prime is 22243891. The next prime is 22243987. The reversal of 22243928 is 82934222.

It is a junction number, because it is equal to n+sod(n) for n = 22243894 and 22243903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5225 + ... + 8472.

It is an arithmetic number, because the mean of its divisors is an integer number (1541025).

Almost surely, 2^22243928 is an apocalyptic number.

22243928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22243928 is an abundant number, since it is smaller than the sum of its proper divisors (27068872).

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

22243928 is a wasteful number, since it uses less digits than its factorization.

22243928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739 (or 13735 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 22243928 is about 4716.3468913980. The cubic root of 22243928 is about 281.2357287903.

The spelling of 22243928 in words is "twenty-two million, two hundred forty-three thousand, nine hundred twenty-eight".