22028912 has 40 divisors (see below), whose sum is σ = 44330496. Its totient is φ = 10596096.

The previous prime is 22028911. The next prime is 22028921. The reversal of 22028912 is 21982022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22028911) 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, 75038 + ... + 75330.

Almost surely, 2^22028912 is an apocalyptic number.

It is an amenable number.

22028912 is an abundant number, since it is smaller than the sum of its proper divisors (22301584).

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

22028912 is a wasteful number, since it uses less digits than its factorization.

22028912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 22028912 is about 4693.4967774571. The cubic root of 22028912 is about 280.3266256392.

The spelling of 22028912 in words is "twenty-two million, twenty-eight thousand, nine hundred twelve".