14321421 has 16 divisors (see below), whose sum is σ = 22334400. Its totient is φ = 9044784.

The previous prime is 14321399. The next prime is 14321443. The reversal of 14321421 is 12412341.

14321421 is digitally balanced in base 2 and base 4, because in such bases 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 (14321399) and next prime (14321443).

It is not a de Polignac number, because 14321421 - 2¹⁷ = 14190349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14321394 and 14321403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14321471) 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, 13446 + ... + 14471.

It is an arithmetic number, because the mean of its divisors is an integer number (1395900).

Almost surely, 2^14321421 is an apocalyptic number.

It is an amenable number.

14321421 is a deficient number, since it is larger than the sum of its proper divisors (8012979).

14321421 is a wasteful number, since it uses less digits than its factorization.

14321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27945 (or 27939 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 14321421 is about 3784.3653364864. The cubic root of 14321421 is about 242.8447415483.

Adding to 14321421 its reverse (12412341), we get a palindrome (26733762).

The spelling of 14321421 in words is "fourteen million, three hundred twenty-one thousand, four hundred twenty-one".