14225421 has 16 divisors (see below), whose sum is σ = 21846528. Its totient is φ = 8065200.

The previous prime is 14225417. The next prime is 14225423. The reversal of 14225421 is 12452241.

It is not a de Polignac number, because 14225421 - 2² = 14225417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14225423) 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, 166 + ... + 5336.

It is an arithmetic number, because the mean of its divisors is an integer number (1365408).

Almost surely, 2^14225421 is an apocalyptic number.

It is an amenable number.

14225421 is a deficient number, since it is larger than the sum of its proper divisors (7621107).

14225421 is a wasteful number, since it uses less digits than its factorization.

14225421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312.

The product of its digits is 640, while the sum is 21.

The square root of 14225421 is about 3771.6602445077. The cubic root of 14225421 is about 242.3009086149.

Adding to 14225421 its reverse (12452241), we get a palindrome (26677662).

The spelling of 14225421 in words is "fourteen million, two hundred twenty-five thousand, four hundred twenty-one".