14243621 has 16 divisors (see below), whose sum is σ = 16896000. Its totient is φ = 11754288.

The previous prime is 14243587. The next prime is 14243623. The reversal of 14243621 is 12634241.

It is not a de Polignac number, because 14243621 - 2¹⁴ = 14227237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14243623) 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 15 ways as a sum of consecutive naturals, for example, 23480 + ... + 24078.

It is an arithmetic number, because the mean of its divisors is an integer number (1056000).

Almost surely, 2^14243621 is an apocalyptic number.

It is an amenable number.

14243621 is a deficient number, since it is larger than the sum of its proper divisors (2652379).

14243621 is an equidigital number, since it uses as much as digits as its factorization.

14243621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its digits is 1152, while the sum is 23.

The square root of 14243621 is about 3774.0722038668. The cubic root of 14243621 is about 242.4041978182.

Adding to 14243621 its reverse (12634241), we get a palindrome (26877862).

The spelling of 14243621 in words is "fourteen million, two hundred forty-three thousand, six hundred twenty-one".