40027171 has 2 divisors, whose sum is σ = 40027172. Its totient is φ = 40027170.

The previous prime is 40027151. The next prime is 40027177. The reversal of 40027171 is 17172004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40027171 - 2⁹ = 40026659 is a prime.

It is not a weakly prime, because it can be changed into another prime (40027177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20013585 + 20013586.

It is an arithmetic number, because the mean of its divisors is an integer number (20013586).

Almost surely, 2^40027171 is an apocalyptic number.

40027171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40027171 is an equidigital number, since it uses as much as digits as its factorization.

40027171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 40027171 is about 6326.7030118380. The cubic root of 40027171 is about 342.0726080692.

Adding to 40027171 its reverse (17172004), we get a palindrome (57199175).

The spelling of 40027171 in words is "forty million, twenty-seven thousand, one hundred seventy-one".