14403221 has 16 divisors (see below), whose sum is σ = 17328384. Its totient is φ = 11704704.

The previous prime is 14403209. The next prime is 14403223. The reversal of 14403221 is 12230441.

It is a cyclic number.

It is not a de Polignac number, because 14403221 - 2⁶ = 14403157 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 14403221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14403223) 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, 21731 + ... + 22383.

It is an arithmetic number, because the mean of its divisors is an integer number (1083024).

Almost surely, 2^14403221 is an apocalyptic number.

It is an amenable number.

14403221 is a deficient number, since it is larger than the sum of its proper divisors (2925163).

14403221 is a wasteful number, since it uses less digits than its factorization.

14403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

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

The square root of 14403221 is about 3795.1575724863. The cubic root of 14403221 is about 243.3062180749.

Adding to 14403221 its reverse (12230441), we get a palindrome (26633662).

The spelling of 14403221 in words is "fourteen million, four hundred three thousand, two hundred twenty-one".