442342 has 4 divisors (see below), whose sum is σ = 663516. Its totient is φ = 221170.

The previous prime is 442333. The next prime is 442363. The reversal of 442342 is 243244.

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

It is a congruent number.

It is an unprimeable number.

442342 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110584 + ... + 110587.

It is an arithmetic number, because the mean of its divisors is an integer number (165879).

2⁴⁴²³⁴² is an apocalyptic number.

442342 is a deficient number, since it is larger than the sum of its proper divisors (221174).

442342 is a wasteful number, since it uses less digits than its factorization.

442342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221173.

The product of its digits is 768, while the sum is 19.

The square root of 442342 is about 665.0879641070. The cubic root of 442342 is about 76.1937576836.

Adding to 442342 its reverse (243244), we get a palindrome (685586).

It can be divided in two parts, 4423 and 42, that added together give a triangular number (4465 = T₉₄).

The spelling of 442342 in words is "four hundred forty-two thousand, three hundred forty-two", and thus it is an iban number.