14028221 has 4 divisors (see below), whose sum is σ = 14044992. Its totient is φ = 14011452.

The previous prime is 14028211. The next prime is 14028239. The reversal of 14028221 is 12282041.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 14028221 - 2²² = 9833917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14028193 and 14028202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14028211) 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, 7061 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (3511248).

Almost surely, 2^14028221 is an apocalyptic number.

It is an amenable number.

14028221 is a deficient number, since it is larger than the sum of its proper divisors (16771).

14028221 is an equidigital number, since it uses as much as digits as its factorization.

14028221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16770.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 14028221 is about 3745.4266779634. The cubic root of 14028221 is about 241.1760620690.

The spelling of 14028221 in words is "fourteen million, twenty-eight thousand, two hundred twenty-one".