22664549 has 16 divisors (see below), whose sum is σ = 24727680. Its totient is φ = 20704320.

The previous prime is 22664533. The next prime is 22664567. The reversal of 22664549 is 94546622.

It is a cyclic number.

It is not a de Polignac number, because 22664549 - 2⁴ = 22664533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22664249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71339 + ... + 71655.

It is an arithmetic number, because the mean of its divisors is an integer number (1545480).

Almost surely, 2^22664549 is an apocalyptic number.

It is an amenable number.

22664549 is a deficient number, since it is larger than the sum of its proper divisors (2063131).

22664549 is a wasteful number, since it uses less digits than its factorization.

22664549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its digits is 103680, while the sum is 38.

The square root of 22664549 is about 4760.7298810161. The cubic root of 22664549 is about 282.9973445959.

The spelling of 22664549 in words is "twenty-two million, six hundred sixty-four thousand, five hundred forty-nine".