442038 has 8 divisors (see below), whose sum is σ = 884088. Its totient is φ = 147344.

The previous prime is 442033. The next prime is 442061. The reversal of 442038 is 830244.

It is a happy number.

442038 is nontrivially palindromic in base 16.

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

442038 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36831 + ... + 36842.

It is an arithmetic number, because the mean of its divisors is an integer number (110511).

2⁴⁴²⁰³⁸ is an apocalyptic number.

442038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

442038 is a wasteful number, since it uses less digits than its factorization.

442038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73678.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 442038 is about 664.8593836294. The cubic root of 442038 is about 76.1762989370.

The spelling of 442038 in words is "four hundred forty-two thousand, thirty-eight".