22744459 has 2 divisors, whose sum is σ = 22744460. Its totient is φ = 22744458.

The previous prime is 22744429. The next prime is 22744499. The reversal of 22744459 is 95444722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22744459 - 2¹³ = 22736267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22744409) 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, 11372229 + 11372230.

It is an arithmetic number, because the mean of its divisors is an integer number (11372230).

Almost surely, 2^22744459 is an apocalyptic number.

22744459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22744459 is an equidigital number, since it uses as much as digits as its factorization.

22744459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 22744459 is about 4769.1151170841. The cubic root of 22744459 is about 283.3295490460.

The spelling of 22744459 in words is "twenty-two million, seven hundred forty-four thousand, four hundred fifty-nine".