442499017 has 2 divisors, whose sum is σ = 442499018. Its totient is φ = 442499016.

The previous prime is 442499009. The next prime is 442499027. The reversal of 442499017 is 710994244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 431766841 + 10732176 = 20779^2 + 3276^2 .

It is a cyclic number.

It is not a de Polignac number, because 442499017 - 2³ = 442499009 is a prime.

It is not a weakly prime, because it can be changed into another prime (442499027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221249508 + 221249509.

It is an arithmetic number, because the mean of its divisors is an integer number (221249509).

Almost surely, 2^442499017 is an apocalyptic number.

It is an amenable number.

442499017 is a deficient number, since it is larger than the sum of its proper divisors (1).

442499017 is an equidigital number, since it uses as much as digits as its factorization.

442499017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 442499017 is about 21035.6606028905. The cubic root of 442499017 is about 762.0277205100.

The spelling of 442499017 in words is "four hundred forty-two million, four hundred ninety-nine thousand, seventeen".