442428907589 has 2 divisors, whose sum is σ = 442428907590. Its totient is φ = 442428907588.

The previous prime is 442428907513. The next prime is 442428907633. The reversal of 442428907589 is 985709824244.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 390947566564 + 51481341025 = 625258^2 + 226895^2 .

It is a cyclic number.

It is not a de Polignac number, because 442428907589 - 2²⁸ = 442160472133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442428907289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221214453794 + 221214453795.

It is an arithmetic number, because the mean of its divisors is an integer number (221214453795).

Almost surely, 2^442428907589 is an apocalyptic number.

It is an amenable number.

442428907589 is a deficient number, since it is larger than the sum of its proper divisors (1).

442428907589 is an equidigital number, since it uses as much as digits as its factorization.

442428907589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 442428907589 in words is "four hundred forty-two billion, four hundred twenty-eight million, nine hundred seven thousand, five hundred eighty-nine".