4240340323 has 4 divisors (see below), whose sum is σ = 4241906008. Its totient is φ = 4238774640.

The previous prime is 4240340249. The next prime is 4240340369. The reversal of 4240340323 is 3230430424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4240340323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240340393) 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, 778773 + ... + 784198.

It is an arithmetic number, because the mean of its divisors is an integer number (1060476502).

Almost surely, 2^4240340323 is an apocalyptic number.

4240340323 is a deficient number, since it is larger than the sum of its proper divisors (1565685).

4240340323 is a wasteful number, since it uses less digits than its factorization.

4240340323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1565684.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 4240340323 is about 65117.8955664263. The cubic root of 4240340323 is about 1618.5777695681.

Adding to 4240340323 its reverse (3230430424), we get a palindrome (7470770747).

The spelling of 4240340323 in words is "four billion, two hundred forty million, three hundred forty thousand, three hundred twenty-three".