14221644 has 24 divisors (see below), whose sum is σ = 33244848. Its totient is φ = 4731840.

The previous prime is 14221643. The next prime is 14221657. The reversal of 14221644 is 44612241.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (14221643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12174 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (1385202).

Almost surely, 2^14221644 is an apocalyptic number.

It is an amenable number.

14221644 is an abundant number, since it is smaller than the sum of its proper divisors (19023204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14221644 is a wasteful number, since it uses less digits than its factorization.

14221644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2183 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 14221644 is about 3771.1595033888. The cubic root of 14221644 is about 242.2794622305.

Adding to 14221644 its reverse (44612241), we get a palindrome (58833885).

The spelling of 14221644 in words is "fourteen million, two hundred twenty-one thousand, six hundred forty-four".