40271443 has 2 divisors, whose sum is σ = 40271444. Its totient is φ = 40271442.

The previous prime is 40271423. The next prime is 40271447. The reversal of 40271443 is 34417204.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40271443 - 2⁵ = 40271411 is a prime.

It is not a weakly prime, because it can be changed into another prime (40271447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20135721 + 20135722.

It is an arithmetic number, because the mean of its divisors is an integer number (20135722).

Almost surely, 2^40271443 is an apocalyptic number.

40271443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40271443 is an equidigital number, since it uses as much as digits as its factorization.

40271443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 40271443 is about 6345.9784903512. The cubic root of 40271443 is about 342.7670476647.

Adding to 40271443 its reverse (34417204), we get a palindrome (74688647).

The spelling of 40271443 in words is "forty million, two hundred seventy-one thousand, four hundred forty-three".