22656490 has 16 divisors (see below), whose sum is σ = 40901760. Its totient is φ = 9035920.

The previous prime is 22656467. The next prime is 22656503. The reversal of 22656490 is 9465622.

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, 435 + ... + 6745.

It is an arithmetic number, because the mean of its divisors is an integer number (2556360).

Almost surely, 2^22656490 is an apocalyptic number.

22656490 is a deficient number, since it is larger than the sum of its proper divisors (18245270).

22656490 is a wasteful number, since it uses less digits than its factorization.

22656490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 22656490 is about 4759.8834019333. The cubic root of 22656490 is about 282.9637981386.

The spelling of 22656490 in words is "twenty-two million, six hundred fifty-six thousand, four hundred ninety".