40240440144143 has 4 divisors (see below), whose sum is σ = 40248895799280. Its totient is φ = 40231984489008.

The previous prime is 40240440144133. The next prime is 40240440144167. The reversal of 40240440144143 is 34144104404204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40240440144143 - 2⁸ = 40240440143887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40240440144133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4227820430 + ... + 4227829947.

It is an arithmetic number, because the mean of its divisors is an integer number (10062223949820).

Almost surely, 2^{40240440144143} is an apocalyptic number.

40240440144143 is a deficient number, since it is larger than the sum of its proper divisors (8455655137).

40240440144143 is an equidigital number, since it uses as much as digits as its factorization.

40240440144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455655136.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 40240440144143 its reverse (34144104404204), we get a palindrome (74384544548347).

The spelling of 40240440144143 in words is "forty trillion, two hundred forty billion, four hundred forty million, one hundred forty-four thousand, one hundred forty-three".