442985759 has 8 divisors (see below), whose sum is σ = 460641360. Its totient is φ = 425488896.

The previous prime is 442985749. The next prime is 442985761. The reversal of 442985759 is 957589244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442985759 - 2²⁰ = 441937183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442985759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442985729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33977 + ... + 45170.

It is an arithmetic number, because the mean of its divisors is an integer number (57580170).

Almost surely, 2^442985759 is an apocalyptic number.

442985759 is a deficient number, since it is larger than the sum of its proper divisors (17655601).

442985759 is a wasteful number, since it uses less digits than its factorization.

442985759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79369.

The product of its digits is 3628800, while the sum is 53.

The square root of 442985759 is about 21047.2268719658. The cubic root of 442985759 is about 762.3070243177.

The spelling of 442985759 in words is "four hundred forty-two million, nine hundred eighty-five thousand, seven hundred fifty-nine".