40360431243 has 24 divisors (see below), whose sum is σ = 59505110784. Its totient is φ = 24314358640.

The previous prime is 40360431191. The next prime is 40360431259. The reversal of 40360431243 is 34213406304.

It is not a de Polignac number, because 40360431243 - 2⁹ = 40360430731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40360431243.

It is not an unprimeable number, because it can be changed into a prime (40360431043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272271 + ... + 393512.

It is an arithmetic number, because the mean of its divisors is an integer number (2479379616).

Almost surely, 2^40360431243 is an apocalyptic number.

40360431243 is a deficient number, since it is larger than the sum of its proper divisors (19144679541).

40360431243 is a wasteful number, since it uses less digits than its factorization.

40360431243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665975 (or 665964 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 40360431243 its reverse (34213406304), we get a palindrome (74573837547).

The spelling of 40360431243 in words is "forty billion, three hundred sixty million, four hundred thirty-one thousand, two hundred forty-three".