442343 has 4 divisors (see below), whose sum is σ = 482568. Its totient is φ = 402120.

The previous prime is 442333. The next prime is 442363. The reversal of 442343 is 343244.

It is a happy number.

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 442343 - 2⁴ = 442327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442333) 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, 20096 + ... + 20117.

It is an arithmetic number, because the mean of its divisors is an integer number (120642).

2⁴⁴²³⁴³ is an apocalyptic number.

442343 is a deficient number, since it is larger than the sum of its proper divisors (40225).

442343 is a wasteful number, since it uses less digits than its factorization.

442343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40224.

The product of its digits is 1152, while the sum is 20.

The square root of 442343 is about 665.0887158868. The cubic root of 442343 is about 76.1938151005.

Adding to 442343 its reverse (343244), we get a palindrome (785587).

Subtracting from 442343 its reverse (343244), we obtain a palindrome (99099).

The spelling of 442343 in words is "four hundred forty-two thousand, three hundred forty-three", and thus it is an iban number.