442433 has 4 divisors (see below), whose sum is σ = 449748. Its totient is φ = 435120.

The previous prime is 442399. The next prime is 442439. The reversal of 442433 is 334244.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 142129 + 300304 = 377^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 442433 - 2⁸ = 442177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442439) 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, 3566 + ... + 3687.

It is an arithmetic number, because the mean of its divisors is an integer number (112437).

2⁴⁴²⁴³³ is an apocalyptic number.

It is an amenable number.

442433 is a deficient number, since it is larger than the sum of its proper divisors (7315).

442433 is an equidigital number, since it uses as much as digits as its factorization.

442433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7314.

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

The square root of 442433 is about 665.1563725922. The cubic root of 442433 is about 76.1989822659.

Adding to 442433 its reverse (334244), we get a palindrome (776677).

The spelling of 442433 in words is "four hundred forty-two thousand, four hundred thirty-three".