2340043223 has 4 divisors (see below), whose sum is σ = 2674335120. Its totient is φ = 2005751328.

The previous prime is 2340043213. The next prime is 2340043261. The reversal of 2340043223 is 3223400432.

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

It is a de Polignac number, because none of the positive numbers 2^k-2340043223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340043213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167145938 + ... + 167145951.

It is an arithmetic number, because the mean of its divisors is an integer number (668583780).

Almost surely, 2^2340043223 is an apocalyptic number.

2340043223 is a deficient number, since it is larger than the sum of its proper divisors (334291897).

2340043223 is an equidigital number, since it uses as much as digits as its factorization.

2340043223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334291896.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 2340043223 is about 48373.9932505060. The cubic root of 2340043223 is about 1327.6225684959.

Adding to 2340043223 its reverse (3223400432), we get a palindrome (5563443655).

The spelling of 2340043223 in words is "two billion, three hundred forty million, forty-three thousand, two hundred twenty-three".