14431431 has 24 divisors (see below), whose sum is σ = 23566080. Its totient is φ = 7810992.

The previous prime is 14431429. The next prime is 14431447. The reversal of 14431431 is 13413441.

It is not a de Polignac number, because 14431431 - 2¹ = 14431429 is a prime.

It is a super-2 number, since 2×14431431² = 416532401415522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 14431398 and 14431407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14431421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (981920).

Almost surely, 2^14431431 is an apocalyptic number.

14431431 is a deficient number, since it is larger than the sum of its proper divisors (9134649).

14431431 is a wasteful number, since it uses less digits than its factorization.

14431431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5203 (or 5196 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 14431431 is about 3798.8723326798. The cubic root of 14431431 is about 243.4649601656.

Adding to 14431431 its reverse (13413441), we get a palindrome (27844872).

The spelling of 14431431 in words is "fourteen million, four hundred thirty-one thousand, four hundred thirty-one".