4240031423 has 4 divisors (see below), whose sum is σ = 4240446600. Its totient is φ = 4239616248.

The previous prime is 4240031413. The next prime is 4240031459. The reversal of 4240031423 is 3241300424.

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 4240031423 - 2⁴ = 4240031407 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 (4240031413) 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, 191873 + ... + 212826.

It is an arithmetic number, because the mean of its divisors is an integer number (1060111650).

Almost surely, 2^4240031423 is an apocalyptic number.

4240031423 is a deficient number, since it is larger than the sum of its proper divisors (415177).

4240031423 is a wasteful number, since it uses less digits than its factorization.

4240031423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415176.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4240031423 is about 65115.5236713950. The cubic root of 4240031423 is about 1618.5384652689.

Adding to 4240031423 its reverse (3241300424), we get a palindrome (7481331847).

The spelling of 4240031423 in words is "four billion, two hundred forty million, thirty-one thousand, four hundred twenty-three".