2043440243 has 8 divisors (see below), whose sum is σ = 2201367168. Its totient is φ = 1885618944.

The previous prime is 2043440213. The next prime is 2043440317. The reversal of 2043440243 is 3420443402.

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 2043440243 - 2²² = 2039245939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2043440213) 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, 16355 + ... + 65987.

It is an arithmetic number, because the mean of its divisors is an integer number (275170896).

Almost surely, 2^2043440243 is an apocalyptic number.

2043440243 is a deficient number, since it is larger than the sum of its proper divisors (157926925).

2043440243 is a wasteful number, since it uses less digits than its factorization.

2043440243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52813.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 2043440243 is about 45204.4272499940. The cubic root of 2043440243 is about 1268.9776721083.

Adding to 2043440243 its reverse (3420443402), we get a palindrome (5463883645).

The spelling of 2043440243 in words is "two billion, forty-three million, four hundred forty thousand, two hundred forty-three".