442559 has 8 divisors (see below), whose sum is σ = 485520. Its totient is φ = 400896.

The previous prime is 442537. The next prime is 442571. The reversal of 442559 is 955244.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442559.

It is not an unprimeable number, because it can be changed into a prime (442579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 479 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (60690).

2⁴⁴²⁵⁵⁹ is an apocalyptic number.

442559 is a deficient number, since it is larger than the sum of its proper divisors (42961).

442559 is a wasteful number, since it uses less digits than its factorization.

442559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649.

The product of its digits is 7200, while the sum is 29.

The square root of 442559 is about 665.2510804200. The cubic root of 442559 is about 76.2062151203.

It can be divided in two parts, 442 and 559, that added together give a palindrome (1001).

The spelling of 442559 in words is "four hundred forty-two thousand, five hundred fifty-nine".