22590638 has 16 divisors (see below), whose sum is σ = 39273984. Its totient is φ = 9544920.

The previous prime is 22590613. The next prime is 22590703. The reversal of 22590638 is 83609522.

It is a junction number, because it is equal to n+sod(n) for n = 22590598 and 22590607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10370 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (2454624).

Almost surely, 2^22590638 is an apocalyptic number.

22590638 is a deficient number, since it is larger than the sum of its proper divisors (16683346).

22590638 is a wasteful number, since it uses less digits than its factorization.

22590638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22807.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 22590638 is about 4752.9609718574. The cubic root of 22590638 is about 282.6893835452.

The spelling of 22590638 in words is "twenty-two million, five hundred ninety thousand, six hundred thirty-eight".