22406440439 has 2 divisors, whose sum is σ = 22406440440. Its totient is φ = 22406440438.

The previous prime is 22406440429. The next prime is 22406440513. The reversal of 22406440439 is 93404460422.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22406440439 - 2⁴ = 22406440423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22406440429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11203220219 + 11203220220.

It is an arithmetic number, because the mean of its divisors is an integer number (11203220220).

Almost surely, 2^22406440439 is an apocalyptic number.

22406440439 is a deficient number, since it is larger than the sum of its proper divisors (1).

22406440439 is an equidigital number, since it uses as much as digits as its factorization.

22406440439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 22406440439 in words is "twenty-two billion, four hundred six million, four hundred forty thousand, four hundred thirty-nine".