40243140443 has 8 divisors (see below), whose sum is σ = 43903252800. Its totient is φ = 36583302280.

The previous prime is 40243140397. The next prime is 40243140449. The reversal of 40243140443 is 34404134204.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40243140443 - 2⁸ = 40243140187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40243140449) 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, 348896 + ... + 449682.

It is an arithmetic number, because the mean of its divisors is an integer number (5487906600).

Almost surely, 2^40243140443 is an apocalyptic number.

40243140443 is a deficient number, since it is larger than the sum of its proper divisors (3660112357).

40243140443 is a wasteful number, since it uses less digits than its factorization.

40243140443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137097.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40243140443 its reverse (34404134204), we get a palindrome (74647274647).

The spelling of 40243140443 in words is "forty billion, two hundred forty-three million, one hundred forty thousand, four hundred forty-three".