22128484 has 24 divisors (see below), whose sum is σ = 46182528. Its totient is φ = 9071040.

The previous prime is 22128473. The next prime is 22128487. The reversal of 22128484 is 48482122.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

22128484 is a modest number, since divided by 8484 gives 2212 as remainder.

It is not an unprimeable number, because it can be changed into a prime (22128487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16537 + ... + 17824.

It is an arithmetic number, because the mean of its divisors is an integer number (1924272).

Almost surely, 2^22128484 is an apocalyptic number.

It is an amenable number.

22128484 is an abundant number, since it is smaller than the sum of its proper divisors (24054044).

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

22128484 is a wasteful number, since it uses less digits than its factorization.

22128484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34395 (or 34393 counting only the distinct ones).

The product of its digits is 8192, while the sum is 31.

The square root of 22128484 is about 4704.0922610000. The cubic root of 22128484 is about 280.7483552340.

The spelling of 22128484 in words is "twenty-two million, one hundred twenty-eight thousand, four hundred eighty-four".