14004431 has 4 divisors (see below), whose sum is σ = 16005072. Its totient is φ = 12003792.

The previous prime is 14004427. The next prime is 14004437. The reversal of 14004431 is 13440041.

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 14004431 - 2² = 14004427 is a prime.

It is a super-2 number, since 2×14004431² = 392248175267522, 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 (14004437) 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, 1000310 + ... + 1000323.

It is an arithmetic number, because the mean of its divisors is an integer number (4001268).

Almost surely, 2^14004431 is an apocalyptic number.

14004431 is a deficient number, since it is larger than the sum of its proper divisors (2000641).

14004431 is an equidigital number, since it uses as much as digits as its factorization.

14004431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000640.

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

The square root of 14004431 is about 3742.2494572115. The cubic root of 14004431 is about 241.0396507363.

Adding to 14004431 its reverse (13440041), we get a palindrome (27444472).

The spelling of 14004431 in words is "fourteen million, four thousand, four hundred thirty-one".