442382 has 16 divisors (see below), whose sum is σ = 708480. Its totient is φ = 206712.

The previous prime is 442367. The next prime is 442397. The reversal of 442382 is 283244.

It is an interprime number because it is at equal distance from previous prime (442367) and next prime (442397).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

442382 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2633 + ... + 2795.

It is an arithmetic number, because the mean of its divisors is an integer number (44280).

2⁴⁴²³⁸² is an apocalyptic number.

442382 is a deficient number, since it is larger than the sum of its proper divisors (266098).

442382 is a wasteful number, since it uses less digits than its factorization.

442382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247.

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

The square root of 442382 is about 665.1180346375. The cubic root of 442382 is about 76.1960542915.

The spelling of 442382 in words is "four hundred forty-two thousand, three hundred eighty-two".