243340411 has 4 divisors (see below), whose sum is σ = 245749824. Its totient is φ = 240931000.

The previous prime is 243340399. The next prime is 243340417. The reversal of 243340411 is 114043342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243340411 - 2⁷ = 243340283 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243340417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204555 + ... + 1204756.

It is an arithmetic number, because the mean of its divisors is an integer number (61437456).

Almost surely, 2^243340411 is an apocalyptic number.

243340411 is a deficient number, since it is larger than the sum of its proper divisors (2409413).

243340411 is a wasteful number, since it uses less digits than its factorization.

243340411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409412.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 243340411 is about 15599.3721348008. The cubic root of 243340411 is about 624.3164033055.

Adding to 243340411 its reverse (114043342), we get a palindrome (357383753).

The spelling of 243340411 in words is "two hundred forty-three million, three hundred forty thousand, four hundred eleven".