22724566 has 8 divisors (see below), whose sum is σ = 34135920. Its totient is φ = 11345928.

The previous prime is 22724561. The next prime is 22724579. The reversal of 22724566 is 66542722.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22724561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6361 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (4266990).

Almost surely, 2^22724566 is an apocalyptic number.

22724566 is a deficient number, since it is larger than the sum of its proper divisors (11411354).

22724566 is a wasteful number, since it uses less digits than its factorization.

22724566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16358.

The product of its digits is 40320, while the sum is 34.

The square root of 22724566 is about 4767.0290538238. The cubic root of 22724566 is about 283.2469220533.

The spelling of 22724566 in words is "twenty-two million, seven hundred twenty-four thousand, five hundred sixty-six".