240344140243 has 4 divisors (see below), whose sum is σ = 240345452880. Its totient is φ = 240342827608.

The previous prime is 240344140213. The next prime is 240344140271. The reversal of 240344140243 is 342041443042.

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 240344140243 - 2¹³ = 240344132051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240344140213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326380 + ... + 766297.

It is an arithmetic number, because the mean of its divisors is an integer number (60086363220).

Almost surely, 2^240344140243 is an apocalyptic number.

240344140243 is a deficient number, since it is larger than the sum of its proper divisors (1312637).

240344140243 is a wasteful number, since it uses less digits than its factorization.

240344140243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312636.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 240344140243 its reverse (342041443042), we get a palindrome (582385583285).

The spelling of 240344140243 in words is "two hundred forty billion, three hundred forty-four million, one hundred forty thousand, two hundred forty-three".