4240434431 has 4 divisors (see below), whose sum is σ = 4244322264. Its totient is φ = 4236546600.

The previous prime is 4240434427. The next prime is 4240434463. The reversal of 4240434431 is 1344340424.

It is a happy number.

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 4240434431 - 2² = 4240434427 is a prime.

It is a super-2 number, since 2×4240434431² = 35962568327220587522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4240434394 and 4240434403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240404431) 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, 1942280 + ... + 1944461.

It is an arithmetic number, because the mean of its divisors is an integer number (1061080566).

Almost surely, 2^4240434431 is an apocalyptic number.

4240434431 is a deficient number, since it is larger than the sum of its proper divisors (3887833).

4240434431 is a wasteful number, since it uses less digits than its factorization.

4240434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887832.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 4240434431 is about 65118.6181594788. The cubic root of 4240434431 is about 1618.5897434490.

Adding to 4240434431 its reverse (1344340424), we get a palindrome (5584774855).

The spelling of 4240434431 in words is "four billion, two hundred forty million, four hundred thirty-four thousand, four hundred thirty-one".