22604449 has 4 divisors (see below), whose sum is σ = 25833664. Its totient is φ = 19375236.

The previous prime is 22604431. The next prime is 22604453. The reversal of 22604449 is 94440622.

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 a cyclic number.

It is not a de Polignac number, because 22604449 - 2⁹ = 22603937 is a prime.

It is a super-2 number, since 2×22604449² = 1021922229187202, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22604449.

It is not an unprimeable number, because it can be changed into a prime (22604419) 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, 1614597 + ... + 1614610.

It is an arithmetic number, because the mean of its divisors is an integer number (6458416).

Almost surely, 2^22604449 is an apocalyptic number.

It is an amenable number.

22604449 is a deficient number, since it is larger than the sum of its proper divisors (3229215).

22604449 is an equidigital number, since it uses as much as digits as its factorization.

22604449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229214.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 22604449 is about 4754.4136336671. The cubic root of 22604449 is about 282.7469800847.

The spelling of 22604449 in words is "twenty-two million, six hundred four thousand, four hundred forty-nine".