44222639 has 2 divisors, whose sum is σ = 44222640. Its totient is φ = 44222638.

The previous prime is 44222611. The next prime is 44222707. The reversal of 44222639 is 93622244.

44222639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 44222639 - 2²⁴ = 27445423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44222609) 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, 22111319 + 22111320.

It is an arithmetic number, because the mean of its divisors is an integer number (22111320).

Almost surely, 2^44222639 is an apocalyptic number.

44222639 is a deficient number, since it is larger than the sum of its proper divisors (1).

44222639 is an equidigital number, since it uses as much as digits as its factorization.

44222639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 32.

The square root of 44222639 is about 6650.0104511196. The cubic root of 44222639 is about 353.6292814376.

The spelling of 44222639 in words is "forty-four million, two hundred twenty-two thousand, six hundred thirty-nine".