4339221 has 8 divisors (see below), whose sum is σ = 5801664. Its totient is φ = 2884800.

The previous prime is 4339217. The next prime is 4339243. The reversal of 4339221 is 1229334.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4339221 - 2² = 4339217 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4339191 and 4339200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4339271) 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, 601 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (725208).

Almost surely, 2^4339221 is an apocalyptic number.

4339221 is the 1203-rd octagonal number.

It is an amenable number.

4339221 is a deficient number, since it is larger than the sum of its proper divisors (1462443).

4339221 is a wasteful number, since it uses less digits than its factorization.

4339221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011.

The product of its digits is 1296, while the sum is 24.

The square root of 4339221 is about 2083.0796912264. The cubic root of 4339221 is about 163.1062451097.

It can be divided in two parts, 4339 and 221, that added together give a triangular number (4560 = T₉₅).

The spelling of 4339221 in words is "four million, three hundred thirty-nine thousand, two hundred twenty-one".