22443489 has 6 divisors (see below), whose sum is σ = 32418386. Its totient is φ = 14962320.

The previous prime is 22443479. The next prime is 22443493. The reversal of 22443489 is 98434422.

It can be written as a sum of positive squares in only one way, i.e., 19580625 + 2862864 = 4425^2 + 1692^2 .

It is not a de Polignac number, because 22443489 - 2⁸ = 22443233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22443409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1246852 + ... + 1246869.

Almost surely, 2^22443489 is an apocalyptic number.

It is an amenable number.

22443489 is a deficient number, since it is larger than the sum of its proper divisors (9974897).

22443489 is a wasteful number, since it uses less digits than its factorization.

22443489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493727 (or 2493724 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 22443489 is about 4737.4559628560. The cubic root of 22443489 is about 282.0742599060.

The spelling of 22443489 in words is "twenty-two million, four hundred forty-three thousand, four hundred eighty-nine".