442456 has 16 divisors (see below), whose sum is σ = 948240. Its totient is φ = 189600.

The previous prime is 442447. The next prime is 442457. The reversal of 442456 is 654244.

It is a self number, because there is not a number n which added to its sum of digits gives 442456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3895 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (59265).

2⁴⁴²⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

442456 is an abundant number, since it is smaller than the sum of its proper divisors (505784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442456 is a wasteful number, since it uses less digits than its factorization.

442456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914 (or 7910 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 442456 is about 665.1736615351. The cubic root of 442456 is about 76.2003026513.

It can be divided in two parts, 442 and 456, that added together give a palindrome (898).

The spelling of 442456 in words is "four hundred forty-two thousand, four hundred fifty-six".