40444171 has 2 divisors, whose sum is σ = 40444172. Its totient is φ = 40444170.

The previous prime is 40444153. The next prime is 40444177. The reversal of 40444171 is 17144404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40444171 - 2¹¹ = 40442123 is a prime.

It is not a weakly prime, because it can be changed into another prime (40444177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20222085 + 20222086.

It is an arithmetic number, because the mean of its divisors is an integer number (20222086).

Almost surely, 2^40444171 is an apocalyptic number.

40444171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40444171 is an equidigital number, since it uses as much as digits as its factorization.

40444171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 40444171 is about 6359.5731775018. The cubic root of 40444171 is about 343.2564020508.

Adding to 40444171 its reverse (17144404), we get a palindrome (57588575).

The spelling of 40444171 in words is "forty million, four hundred forty-four thousand, one hundred seventy-one".