14227421 has 4 divisors (see below), whose sum is σ = 15321852. Its totient is φ = 13132992.

The previous prime is 14227397. The next prime is 14227439. The reversal of 14227421 is 12472241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5736025 + 8491396 = 2395^2 + 2914^2 .

It is a cyclic number.

It is not a de Polignac number, because 14227421 - 2¹⁴ = 14211037 is a prime.

It is a super-2 number, since 2×14227421² = 404839016622482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14227021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547196 + ... + 547221.

It is an arithmetic number, because the mean of its divisors is an integer number (3830463).

Almost surely, 2^14227421 is an apocalyptic number.

It is an amenable number.

14227421 is a deficient number, since it is larger than the sum of its proper divisors (1094431).

14227421 is a wasteful number, since it uses less digits than its factorization.

14227421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094430.

The product of its digits is 896, while the sum is 23.

The square root of 14227421 is about 3771.9253704176. The cubic root of 14227421 is about 242.3122633839.

Adding to 14227421 its reverse (12472241), we get a palindrome (26699662).

The spelling of 14227421 in words is "fourteen million, two hundred twenty-seven thousand, four hundred twenty-one".