22455128 has 16 divisors (see below), whose sum is σ = 42521760. Its totient is φ = 11116000.

The previous prime is 22455101. The next prime is 22455149. The reversal of 22455128 is 82155422.

It is a self number, because there is not a number n which added to its sum of digits gives 22455128.

It is a congruent number.

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, 13088 + ... + 14703.

It is an arithmetic number, because the mean of its divisors is an integer number (2657610).

Almost surely, 2^22455128 is an apocalyptic number.

It is an amenable number.

22455128 is a deficient number, since it is larger than the sum of its proper divisors (20066632).

22455128 is a wasteful number, since it uses less digits than its factorization.

22455128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27898 (or 27894 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 22455128 is about 4738.6842055575. The cubic root of 22455128 is about 282.1230119064.

The spelling of 22455128 in words is "twenty-two million, four hundred fifty-five thousand, one hundred twenty-eight".