422569439 has 2 divisors, whose sum is σ = 422569440. Its totient is φ = 422569438.

The previous prime is 422569421. The next prime is 422569453. The reversal of 422569439 is 934965224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422569439 - 2²⁸ = 154133983 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422569439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422529439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211284719 + 211284720.

It is an arithmetic number, because the mean of its divisors is an integer number (211284720).

Almost surely, 2^422569439 is an apocalyptic number.

422569439 is a deficient number, since it is larger than the sum of its proper divisors (1).

422569439 is an equidigital number, since it uses as much as digits as its factorization.

422569439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 422569439 is about 20556.4938401470. The cubic root of 422569439 is about 750.4112938160.

The spelling of 422569439 in words is "four hundred twenty-two million, five hundred sixty-nine thousand, four hundred thirty-nine".