4140431 has 4 divisors (see below), whose sum is σ = 4165392. Its totient is φ = 4115472.

The previous prime is 4140421. The next prime is 4140439. The reversal of 4140431 is 1340414.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4140431 is a prime.

It is a super-2 number, since 2×4140431² = 34286337731522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140439) 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, 12230 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (1041348).

Almost surely, 2^4140431 is an apocalyptic number.

4140431 is a deficient number, since it is larger than the sum of its proper divisors (24961).

4140431 is a wasteful number, since it uses less digits than its factorization.

4140431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24960.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4140431 is about 2034.8049046530. The cubic root of 4140431 is about 160.5764493154.

Subtracting from 4140431 its sum of digits (17), we obtain a palindrome (4140414).

Adding to 4140431 its reverse (1340414), we get a palindrome (5480845).

The spelling of 4140431 in words is "four million, one hundred forty thousand, four hundred thirty-one".