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14421 = 3111923

14421 has 16 divisors (see below), whose sum is σ = 23040. Its totient is φ = 7920.

The previous prime is 14419. The next prime is 14423. The reversal of 14421 is 12441.

Adding to 14421 its reverse (12441), we get a palindrome (26862).

It can be divided in two parts, 14 and 421, that added together give a triangular number (435 = T29).

14421 = 182 + 192 + ... + 362.

14421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (14419) and next prime (14423).

It is not a de Polignac number, because 14421 - 21 = 14419 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 14397 and 14406.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 14421.

It is not an unprimeable number, because it can be changed into a prime (14423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (1440).

214421 is an apocalyptic number.

14421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14421 is a deficient number, since it is larger than the sum of its proper divisors (8619).

14421 is a wasteful number, since it uses less digits than its factorization.

14421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56.

The product of its digits is 32, while the sum is 12.

The square root of 14421 is about 120.0874681222. The cubic root of 14421 is about 24.3406287418.

The spelling of 14421 in words is "fourteen thousand, four hundred twenty-one", and thus it is an iban number.

Divisors: 1 3 11 19 23 33 57 69 209 253 437 627 759 1311 4807 14421