4231440423 has 48 divisors (see below), whose sum is σ = 7218432000. Its totient is φ = 2387221200.

The previous prime is 4231440419. The next prime is 4231440439. The reversal of 4231440423 is 3240441324.

It is a happy number.

4231440423 is a `hidden beast` number, since 4 + 231 + 4 + 4 + 0 + 423 = 666.

It is not a de Polignac number, because 4231440423 - 2² = 4231440419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231440223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235198 + ... + 252548.

It is an arithmetic number, because the mean of its divisors is an integer number (150384000).

Almost surely, 2^4231440423 is an apocalyptic number.

4231440423 is a deficient number, since it is larger than the sum of its proper divisors (2986991577).

4231440423 is a wasteful number, since it uses less digits than its factorization.

4231440423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17457 (or 17440 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 4231440423 is about 65049.5228499026. The cubic root of 4231440423 is about 1617.4445845613. Note that the first 3 decimals are identical.

Adding to 4231440423 its reverse (3240441324), we get a palindrome (7471881747).

Subtracting from 4231440423 its reverse (3240441324), we obtain a palindrome (990999099).

The spelling of 4231440423 in words is "four billion, two hundred thirty-one million, four hundred forty thousand, four hundred twenty-three".