22028908 has 24 divisors (see below), whose sum is σ = 42480144. Its totient is φ = 9912000.

The previous prime is 22028899. The next prime is 22028911. The reversal of 22028908 is 80982022.

It is a hoax number, since the sum of its digits (31) 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 22028908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966 + ... + 6922.

It is an arithmetic number, because the mean of its divisors is an integer number (1770006).

Almost surely, 2^22028908 is an apocalyptic number.

It is an amenable number.

22028908 is a deficient number, since it is larger than the sum of its proper divisors (20451236).

22028908 is a wasteful number, since it uses less digits than its factorization.

22028908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5073 (or 5071 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 22028908 is about 4693.4963513355. The cubic root of 22028908 is about 280.3266086720.

The spelling of 22028908 in words is "twenty-two million, twenty-eight thousand, nine hundred eight".