442238 has 8 divisors (see below), whose sum is σ = 702432. Its totient is φ = 208096.

The previous prime is 442237. The next prime is 442243. The reversal of 442238 is 832244.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442237) 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, 6470 + ... + 6537.

It is an arithmetic number, because the mean of its divisors is an integer number (87804).

2⁴⁴²²³⁸ is an apocalyptic number.

442238 is a deficient number, since it is larger than the sum of its proper divisors (260194).

442238 is a wasteful number, since it uses less digits than its factorization.

442238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13026.

The product of its digits is 1536, while the sum is 23.

The square root of 442238 is about 665.0097743643. The cubic root of 442238 is about 76.1877858549.

The spelling of 442238 in words is "four hundred forty-two thousand, two hundred thirty-eight".