40040344143 has 8 divisors (see below), whose sum is σ = 59319028400. Its totient is φ = 26693562744.

The previous prime is 40040344133. The next prime is 40040344153. The reversal of 40040344143 is 34144304004.

40040344143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40040344133) and next prime (40040344153).

It is not a de Polignac number, because 40040344143 - 2⁵ = 40040344111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1482975709 = 40040344143 / (4 + 0 + 0 + 4 + 0 + 3 + 4 + 4 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40040344133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741487828 + ... + 741487881.

It is an arithmetic number, because the mean of its divisors is an integer number (7414878550).

Almost surely, 2^40040344143 is an apocalyptic number.

40040344143 is a deficient number, since it is larger than the sum of its proper divisors (19278684257).

40040344143 is a wasteful number, since it uses less digits than its factorization.

40040344143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482975718 (or 1482975712 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 40040344143 its reverse (34144304004), we get a palindrome (74184648147).

The spelling of 40040344143 in words is "forty billion, forty million, three hundred forty-four thousand, one hundred forty-three".