4144221 has 12 divisors (see below), whose sum is σ = 6007872. Its totient is φ = 2752776.

The previous prime is 4144201. The next prime is 4144237. The reversal of 4144221 is 1224414.

It is not a de Polignac number, because 4144221 - 2⁹ = 4143709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4144194 and 4144203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2460 + ... + 3786.

It is an arithmetic number, because the mean of its divisors is an integer number (500656).

Almost surely, 2^4144221 is an apocalyptic number.

It is an amenable number.

4144221 is a deficient number, since it is larger than the sum of its proper divisors (1863651).

4144221 is a wasteful number, since it uses less digits than its factorization.

4144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1677 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 4144221 is about 2035.7359848468. The cubic root of 4144221 is about 160.6254296546.

Adding to 4144221 its reverse (1224414), we get a palindrome (5368635).

The spelling of 4144221 in words is "four million, one hundred forty-four thousand, two hundred twenty-one".