442171 has 2 divisors, whose sum is σ = 442172. Its totient is φ = 442170.

The previous prime is 442157. The next prime is 442177. The reversal of 442171 is 171244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442171 - 2⁵ = 442139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221085 + 221086.

It is an arithmetic number, because the mean of its divisors is an integer number (221086).

2⁴⁴²¹⁷¹ is an apocalyptic number.

442171 is a deficient number, since it is larger than the sum of its proper divisors (1).

442171 is an equidigital number, since it uses as much as digits as its factorization.

442171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 224, while the sum is 19.

The square root of 442171 is about 664.9593972567. The cubic root of 442171 is about 76.1839381232.

The spelling of 442171 in words is "four hundred forty-two thousand, one hundred seventy-one", and thus it is an iban number.