40004234143 has 2 divisors, whose sum is σ = 40004234144. Its totient is φ = 40004234142.

The previous prime is 40004234119. The next prime is 40004234147. The reversal of 40004234143 is 34143240004.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40004234143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40004234147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002117071 + 20002117072.

It is an arithmetic number, because the mean of its divisors is an integer number (20002117072).

Almost surely, 2^40004234143 is an apocalyptic number.

40004234143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004234143 is an equidigital number, since it uses as much as digits as its factorization.

40004234143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40004234143 its reverse (34143240004), we get a palindrome (74147474147).

The spelling of 40004234143 in words is "forty billion, four million, two hundred thirty-four thousand, one hundred forty-three".