442043 has 4 divisors (see below), whose sum is σ = 505200. Its totient is φ = 378888.

The previous prime is 442033. The next prime is 442061. The reversal of 442043 is 340244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442043 - 2⁴ = 442027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31568 + ... + 31581.

It is an arithmetic number, because the mean of its divisors is an integer number (126300).

2⁴⁴²⁰⁴³ is an apocalyptic number.

442043 is a deficient number, since it is larger than the sum of its proper divisors (63157).

442043 is an equidigital number, since it uses as much as digits as its factorization.

442043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63156.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 442043 is about 664.8631438123. The cubic root of 442043 is about 76.1765861522.

Adding to 442043 its reverse (340244), we get a palindrome (782287).

The spelling of 442043 in words is "four hundred forty-two thousand, forty-three", and thus it is an iban number.