442371 has 4 divisors (see below), whose sum is σ = 589832. Its totient is φ = 294912.

The previous prime is 442367. The next prime is 442397. The reversal of 442371 is 173244.

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

It is not a de Polignac number, because 442371 - 2² = 442367 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 4⁹ + 3¹¹ + 2¹¹ + 7 + 1 .

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73726 + ... + 73731.

It is an arithmetic number, because the mean of its divisors is an integer number (147458).

2⁴⁴²³⁷¹ is an apocalyptic number.

442371 is a deficient number, since it is larger than the sum of its proper divisors (147461).

442371 is a wasteful number, since it uses less digits than its factorization.

442371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147460.

The product of its digits is 672, while the sum is 21.

The square root of 442371 is about 665.1097653771. The cubic root of 442371 is about 76.1954227381.

It can be divided in two parts, 44 and 2371, that added together give a triangular number (2415 = T₆₉).

The spelling of 442371 in words is "four hundred forty-two thousand, three hundred seventy-one", and thus it is an iban number.