22533428 has 12 divisors (see below), whose sum is σ = 39695712. Its totient is φ = 11191800.

The previous prime is 22533397. The next prime is 22533437. The reversal of 22533428 is 82433522.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22533428.

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, 18050 + ... + 19257.

It is an arithmetic number, because the mean of its divisors is an integer number (3307976).

Almost surely, 2^22533428 is an apocalyptic number.

It is an amenable number.

22533428 is a deficient number, since it is larger than the sum of its proper divisors (17162284).

22533428 is a wasteful number, since it uses less digits than its factorization.

22533428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37462 (or 37460 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 22533428 is about 4746.9388030603. The cubic root of 22533428 is about 282.4505481612.

The spelling of 22533428 in words is "twenty-two million, five hundred thirty-three thousand, four hundred twenty-eight".