442067 has 4 divisors (see below), whose sum is σ = 449376. Its totient is φ = 434760.

The previous prime is 442061. The next prime is 442069. The reversal of 442067 is 760244.

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

It is a cyclic number.

It is not a de Polignac number, because 442067 - 2⁶ = 442003 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442067.

It is not an unprimeable number, because it can be changed into a prime (442061) 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, 3563 + ... + 3684.

It is an arithmetic number, because the mean of its divisors is an integer number (112344).

2⁴⁴²⁰⁶⁷ is an apocalyptic number.

442067 is a deficient number, since it is larger than the sum of its proper divisors (7309).

442067 is an equidigital number, since it uses as much as digits as its factorization.

442067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 442067 is about 664.8811923946. The cubic root of 442067 is about 76.1779647549.

The spelling of 442067 in words is "four hundred forty-two thousand, sixty-seven".