442056 has 32 divisors (see below), whose sum is σ = 1121760. Its totient is φ = 145152.

The previous prime is 442033. The next prime is 442061. The reversal of 442056 is 650244.

It is a happy number.

It is an unprimeable number.

442056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 2631 + ... + 2793.

It is an arithmetic number, because the mean of its divisors is an integer number (35055).

2⁴⁴²⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

442056 is an abundant number, since it is smaller than the sum of its proper divisors (679704).

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

442056 is a wasteful number, since it uses less digits than its factorization.

442056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 442056 is about 664.8729201885. The cubic root of 442056 is about 76.1773329015.

The spelling of 442056 in words is "four hundred forty-two thousand, fifty-six".