422404439 has 2 divisors, whose sum is σ = 422404440. Its totient is φ = 422404438.

The previous prime is 422404417. The next prime is 422404441. The reversal of 422404439 is 934404224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422404439 - 2⁸ = 422404183 is a prime.

Together with 422404441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422424439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211202219 + 211202220.

It is an arithmetic number, because the mean of its divisors is an integer number (211202220).

Almost surely, 2^422404439 is an apocalyptic number.

422404439 is a deficient number, since it is larger than the sum of its proper divisors (1).

422404439 is an equidigital number, since it uses as much as digits as its factorization.

422404439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 422404439 is about 20552.4801179809. The cubic root of 422404439 is about 750.3136104760.

The spelling of 422404439 in words is "four hundred twenty-two million, four hundred four thousand, four hundred thirty-nine".