40322171 has 2 divisors, whose sum is σ = 40322172. Its totient is φ = 40322170.

The previous prime is 40322167. The next prime is 40322173. The reversal of 40322171 is 17122304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40322171 - 2² = 40322167 is a prime.

Together with 40322173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40322173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20161085 + 20161086.

It is an arithmetic number, because the mean of its divisors is an integer number (20161086).

Almost surely, 2^40322171 is an apocalyptic number.

40322171 is a deficient number, since it is larger than the sum of its proper divisors (1).

40322171 is an equidigital number, since it uses as much as digits as its factorization.

40322171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 40322171 is about 6349.9740944353. The cubic root of 40322171 is about 342.9109096647.

Adding to 40322171 its reverse (17122304), we get a palindrome (57444475).

The spelling of 40322171 in words is "forty million, three hundred twenty-two thousand, one hundred seventy-one".