4384221 has 4 divisors (see below), whose sum is σ = 5845632. Its totient is φ = 2922812.

The previous prime is 4384189. The next prime is 4384243. The reversal of 4384221 is 1224834.

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 4384221 - 2⁵ = 4384189 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4384191 and 4384200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4384271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730701 + ... + 730706.

It is an arithmetic number, because the mean of its divisors is an integer number (1461408).

Almost surely, 2^4384221 is an apocalyptic number.

It is an amenable number.

4384221 is a deficient number, since it is larger than the sum of its proper divisors (1461411).

4384221 is a wasteful number, since it uses less digits than its factorization.

4384221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461410.

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

The square root of 4384221 is about 2093.8531467130. The cubic root of 4384221 is about 163.6681396484.

The spelling of 4384221 in words is "four million, three hundred eighty-four thousand, two hundred twenty-one".