243440015043 has 16 divisors (see below), whose sum is σ = 331434719136. Its totient is φ = 158882730240.

The previous prime is 243440015029. The next prime is 243440015053. The reversal of 243440015043 is 340510044342.

It is not a de Polignac number, because 243440015043 - 2¹⁰ = 243440014019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243440015043.

It is not an unprimeable number, because it can be changed into a prime (243440015023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1602468 + ... + 1747793.

It is an arithmetic number, because the mean of its divisors is an integer number (20714669946).

Almost surely, 2^243440015043 is an apocalyptic number.

243440015043 is a deficient number, since it is larger than the sum of its proper divisors (87994704093).

243440015043 is a wasteful number, since it uses less digits than its factorization.

243440015043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3350774.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 243440015043 its reverse (340510044342), we get a palindrome (583950059385).

The spelling of 243440015043 in words is "two hundred forty-three billion, four hundred forty million, fifteen thousand, forty-three".