22439439 has 48 divisors (see below), whose sum is σ = 38188800. Its totient is φ = 12545280.

The previous prime is 22439429. The next prime is 22439489. The reversal of 22439439 is 93493422.

It is not a de Polignac number, because 22439439 - 2⁵ = 22439407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22439419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112662 + ... + 112860.

It is an arithmetic number, because the mean of its divisors is an integer number (795600).

Almost surely, 2^22439439 is an apocalyptic number.

22439439 is a deficient number, since it is larger than the sum of its proper divisors (15749361).

22439439 is a wasteful number, since it uses less digits than its factorization.

22439439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 297 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 22439439 is about 4737.0284989643. The cubic root of 22439439 is about 282.0572918152.

The spelling of 22439439 in words is "twenty-two million, four hundred thirty-nine thousand, four hundred thirty-nine".