440171 has 2 divisors, whose sum is σ = 440172. Its totient is φ = 440170.

The previous prime is 440159. The next prime is 440177. The reversal of 440171 is 171044.

440171 is nontrivially palindromic in base 2.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440171 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (440177) 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 as a sum of consecutive naturals, namely, 220085 + 220086.

It is an arithmetic number, because the mean of its divisors is an integer number (220086).

2⁴⁴⁰¹⁷¹ is an apocalyptic number.

440171 is a deficient number, since it is larger than the sum of its proper divisors (1).

440171 is an equidigital number, since it uses as much as digits as its factorization.

440171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 440171 is about 663.4538416499. The cubic root of 440171 is about 76.0689010432.

The spelling of 440171 in words is "four hundred forty thousand, one hundred seventy-one", and thus it is an iban number.