12223928 has 16 divisors (see below), whose sum is σ = 23243760. Its totient is φ = 6025600.

The previous prime is 12223927. The next prime is 12223933. The reversal of 12223928 is 82932221.

12223928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12223928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10193 + ... + 11328.

It is an arithmetic number, because the mean of its divisors is an integer number (1452735).

Almost surely, 2^12223928 is an apocalyptic number.

It is an amenable number.

12223928 is a deficient number, since it is larger than the sum of its proper divisors (11019832).

12223928 is a wasteful number, since it uses less digits than its factorization.

12223928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21598 (or 21594 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 12223928 is about 3496.2734446836. The cubic root of 12223928 is about 230.3581565441.

The spelling of 12223928 in words is "twelve million, two hundred twenty-three thousand, nine hundred twenty-eight".