22044439 has 2 divisors, whose sum is σ = 22044440. Its totient is φ = 22044438.

The previous prime is 22044433. The next prime is 22044443. The reversal of 22044439 is 93444022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22044439 - 2⁷ = 22044311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22044433) 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 as a sum of consecutive naturals, namely, 11022219 + 11022220.

It is an arithmetic number, because the mean of its divisors is an integer number (11022220).

Almost surely, 2^22044439 is an apocalyptic number.

22044439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22044439 is an equidigital number, since it uses as much as digits as its factorization.

22044439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 22044439 is about 4695.1505833147. The cubic root of 22044439 is about 280.3924725781.

The spelling of 22044439 in words is "twenty-two million, forty-four thousand, four hundred thirty-nine".