14320421 has 16 divisors (see below), whose sum is σ = 15534720. Its totient is φ = 13168320.

The previous prime is 14320381. The next prime is 14320447. The reversal of 14320421 is 12402341.

It is a cyclic number.

It is not a de Polignac number, because 14320421 - 2¹⁰ = 14319397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14320421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14320451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82691 + ... + 82863.

It is an arithmetic number, because the mean of its divisors is an integer number (970920).

Almost surely, 2^14320421 is an apocalyptic number.

It is an amenable number.

14320421 is a deficient number, since it is larger than the sum of its proper divisors (1214299).

14320421 is a wasteful number, since it uses less digits than its factorization.

14320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316.

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

The square root of 14320421 is about 3784.2332116295. The cubic root of 14320421 is about 242.8390891671.

Adding to 14320421 its reverse (12402341), we get a palindrome (26722762).

It can be divided in two parts, 14320 and 421, that added together give a palindrome (14741).

The spelling of 14320421 in words is "fourteen million, three hundred twenty thousand, four hundred twenty-one".