442379 has 4 divisors (see below), whose sum is σ = 505584. Its totient is φ = 379176.

The previous prime is 442367. The next prime is 442397. The reversal of 442379 is 973244.

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

It is not a de Polignac number, because 442379 - 2⁴ = 442363 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 4⁹ + 3¹¹ + 2¹¹ + 7 + 9 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31592 + ... + 31605.

It is an arithmetic number, because the mean of its divisors is an integer number (126396).

2⁴⁴²³⁷⁹ is an apocalyptic number.

442379 is a deficient number, since it is larger than the sum of its proper divisors (63205).

442379 is an equidigital number, since it uses as much as digits as its factorization.

442379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63204.

The product of its digits is 6048, while the sum is 29.

The square root of 442379 is about 665.1157793948. The cubic root of 442379 is about 76.1958820507.

The spelling of 442379 in words is "four hundred forty-two thousand, three hundred seventy-nine".