442398 has 16 divisors (see below), whose sum is σ = 965376. Its totient is φ = 134040.

The previous prime is 442397. The next prime is 442399. The reversal of 442398 is 893244.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (442397) and next prime (442399).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3286 + ... + 3417.

It is an arithmetic number, because the mean of its divisors is an integer number (60336).

2⁴⁴²³⁹⁸ is an apocalyptic number.

442398 is an abundant number, since it is smaller than the sum of its proper divisors (522978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442398 is a wasteful number, since it uses less digits than its factorization.

442398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719.

The product of its digits is 6912, while the sum is 30.

The square root of 442398 is about 665.1300624690. The cubic root of 442398 is about 76.1969728959.

It can be divided in two parts, 44 and 2398, that added together give a palindrome (2442).

The spelling of 442398 in words is "four hundred forty-two thousand, three hundred ninety-eight".