14381391 has 16 divisors (see below), whose sum is σ = 19699200. Its totient is φ = 9328800.

The previous prime is 14381387. The next prime is 14381399. The reversal of 14381391 is 19318341.

It is not a de Polignac number, because 14381391 - 2² = 14381387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14381399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23710 + ... + 24308.

It is an arithmetic number, because the mean of its divisors is an integer number (1231200).

Almost surely, 2^14381391 is an apocalyptic number.

14381391 is a deficient number, since it is larger than the sum of its proper divisors (5317809).

14381391 is a wasteful number, since it uses less digits than its factorization.

14381391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 2592, while the sum is 30.

The square root of 14381391 is about 3792.2804484901. The cubic root of 14381391 is about 243.1832349272.

The spelling of 14381391 in words is "fourteen million, three hundred eighty-one thousand, three hundred ninety-one".