22690490 has 8 divisors (see below), whose sum is σ = 40842900. Its totient is φ = 9076192.

The previous prime is 22690483. The next prime is 22690501. The reversal of 22690490 is 9409622.

It can be written as a sum of positive squares in 2 ways, for example, as 21893041 + 797449 = 4679^2 + 893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 1134515 + ... + 1134534.

Almost surely, 2^22690490 is an apocalyptic number.

22690490 is a deficient number, since it is larger than the sum of its proper divisors (18152410).

22690490 is a wasteful number, since it uses less digits than its factorization.

22690490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2269056.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 22690490 is about 4763.4535790747. The cubic root of 22690490 is about 283.1052728419.

The spelling of 22690490 in words is "twenty-two million, six hundred ninety thousand, four hundred ninety".