40032271 has 2 divisors, whose sum is σ = 40032272. Its totient is φ = 40032270.

The previous prime is 40032247. The next prime is 40032281. The reversal of 40032271 is 17223004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40032271 - 2¹³ = 40024079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40032211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20016135 + 20016136.

It is an arithmetic number, because the mean of its divisors is an integer number (20016136).

Almost surely, 2^40032271 is an apocalyptic number.

40032271 is a deficient number, since it is larger than the sum of its proper divisors (1).

40032271 is an equidigital number, since it uses as much as digits as its factorization.

40032271 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 19.

The square root of 40032271 is about 6327.1060525330. The cubic root of 40032271 is about 342.0871356694.

Adding to 40032271 its reverse (17223004), we get a palindrome (57255275).

The spelling of 40032271 in words is "forty million, thirty-two thousand, two hundred seventy-one".