4040243543 has 16 divisors (see below), whose sum is σ = 4869047040. Its totient is φ = 3274992000.

The previous prime is 4040243479. The next prime is 4040243567. The reversal of 4040243543 is 3453420404.

It is not a de Polignac number, because 4040243543 - 2⁶ = 4040243479 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 (4040243243) 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 in 15 ways as a sum of consecutive naturals, for example, 49343 + ... + 102543.

It is an arithmetic number, because the mean of its divisors is an integer number (304315440).

Almost surely, 2^4040243543 is an apocalyptic number.

4040243543 is a deficient number, since it is larger than the sum of its proper divisors (828803497).

4040243543 is a wasteful number, since it uses less digits than its factorization.

4040243543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53798.

The product of its (nonzero) digits is 23040, while the sum is 29.

The square root of 4040243543 is about 63562.9101206041. The cubic root of 4040243543 is about 1592.7068514120.

Adding to 4040243543 its reverse (3453420404), we get a palindrome (7493663947).

The spelling of 4040243543 in words is "four billion, forty million, two hundred forty-three thousand, five hundred forty-three".