22643554 has 16 divisors (see below), whose sum is σ = 36093600. Its totient is φ = 10623744.

The previous prime is 22643549. The next prime is 22643563. The reversal of 22643554 is 45534622.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1282 + ... + 6850.

It is an arithmetic number, because the mean of its divisors is an integer number (2255850).

Almost surely, 2^22643554 is an apocalyptic number.

22643554 is a deficient number, since it is larger than the sum of its proper divisors (13450046).

22643554 is a wasteful number, since it uses less digits than its factorization.

22643554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5697.

The product of its digits is 28800, while the sum is 31.

The square root of 22643554 is about 4758.5243510988. The cubic root of 22643554 is about 282.9099340057.

The spelling of 22643554 in words is "twenty-two million, six hundred forty-three thousand, five hundred fifty-four".