4240344523 has 2 divisors, whose sum is σ = 4240344524. Its totient is φ = 4240344522.

The previous prime is 4240344481. The next prime is 4240344541. The reversal of 4240344523 is 3254430424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4240344523 is a prime.

It is not a weakly prime, because it can be changed into another prime (4240344583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2120172261 + 2120172262.

It is an arithmetic number, because the mean of its divisors is an integer number (2120172262).

Almost surely, 2^4240344523 is an apocalyptic number.

4240344523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4240344523 is an equidigital number, since it uses as much as digits as its factorization.

4240344523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 31.

The square root of 4240344523 is about 65117.9278156177. The cubic root of 4240344523 is about 1618.5783039611.

Adding to 4240344523 its reverse (3254430424), we get a palindrome (7494774947).

The spelling of 4240344523 in words is "four billion, two hundred forty million, three hundred forty-four thousand, five hundred twenty-three".