22490608 has 30 divisors (see below), whose sum is σ = 50691696. Its totient is φ = 9638496.

The previous prime is 22490597. The next prime is 22490621. The reversal of 22490608 is 80609422.

It is a self number, because there is not a number n which added to its sum of digits gives 22490608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13560 + ... + 15127.

Almost surely, 2^22490608 is an apocalyptic number.

22490608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22490608 is an abundant number, since it is smaller than the sum of its proper divisors (28201088).

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

22490608 is a wasteful number, since it uses less digits than its factorization.

22490608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28709 (or 28696 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 22490608 is about 4742.4263831925. The cubic root of 22490608 is about 282.2715222624.

The spelling of 22490608 in words is "twenty-two million, four hundred ninety thousand, six hundred eight".