442057 has 8 divisors (see below), whose sum is σ = 551232. Its totient is φ = 344400.

The previous prime is 442033. The next prime is 442061. The reversal of 442057 is 750244.

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

It is not a de Polignac number, because 442057 - 2¹¹ = 440009 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (442007) 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, 2794 + ... + 2947.

It is an arithmetic number, because the mean of its divisors is an integer number (68904).

2⁴⁴²⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

442057 is a deficient number, since it is larger than the sum of its proper divisors (109175).

442057 is a wasteful number, since it uses less digits than its factorization.

442057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5759.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 442057 is about 664.8736722115. The cubic root of 442057 is about 76.1773903431.

The spelling of 442057 in words is "four hundred forty-two thousand, fifty-seven".