22504449 has 16 divisors (see below), whose sum is σ = 33534144. Its totient is φ = 13305600.

The previous prime is 22504421. The next prime is 22504453. The reversal of 22504449 is 94440522.

It is not a de Polignac number, because 22504449 - 2¹² = 22500353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22504459) 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, 6964 + ... + 9669.

It is an arithmetic number, because the mean of its divisors is an integer number (2095884).

Almost surely, 2^22504449 is an apocalyptic number.

It is an amenable number.

22504449 is a deficient number, since it is larger than the sum of its proper divisors (11029695).

22504449 is a wasteful number, since it uses less digits than its factorization.

22504449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16688.

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

The square root of 22504449 is about 4743.8854328493. The cubic root of 22504449 is about 282.3294148571.

The spelling of 22504449 in words is "twenty-two million, five hundred four thousand, four hundred forty-nine".