22664541 has 4 divisors (see below), whose sum is σ = 30219392. Its totient is φ = 15109692.

The previous prime is 22664533. The next prime is 22664567. The reversal of 22664541 is 14546622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22664541 - 2³ = 22664533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22664499 and 22664508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22664531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3777421 + ... + 3777426.

It is an arithmetic number, because the mean of its divisors is an integer number (7554848).

Almost surely, 2^22664541 is an apocalyptic number.

It is an amenable number.

22664541 is a deficient number, since it is larger than the sum of its proper divisors (7554851).

22664541 is an equidigital number, since it uses as much as digits as its factorization.

22664541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7554850.

The product of its digits is 11520, while the sum is 30.

The square root of 22664541 is about 4760.7290408088. The cubic root of 22664541 is about 282.9973112989.

The spelling of 22664541 in words is "twenty-two million, six hundred sixty-four thousand, five hundred forty-one".