4233221 has 8 divisors (see below), whose sum is σ = 4587264. Its totient is φ = 3890880.

The previous prime is 4233199. The next prime is 4233247. The reversal of 4233221 is 1223324.

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

It is a cyclic number.

It is not a de Polignac number, because 4233221 - 2¹⁰ = 4232197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a d-powerful number, because it can be written as 4³ + 2¹¹ + 3¹² + 3¹³ + 2¹³ + 2²¹ + 1 .

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4233221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4233121) 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, 2165 + ... + 3626.

It is an arithmetic number, because the mean of its divisors is an integer number (573408).

Almost surely, 2^4233221 is an apocalyptic number.

It is an amenable number.

4233221 is a deficient number, since it is larger than the sum of its proper divisors (354043).

4233221 is a wasteful number, since it uses less digits than its factorization.

4233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5851.

The product of its digits is 288, while the sum is 17.

The square root of 4233221 is about 2057.4792830063. The cubic root of 4233221 is about 161.7671424634.

Adding to 4233221 its reverse (1223324), we get a palindrome (5456545).

The spelling of 4233221 in words is "four million, two hundred thirty-three thousand, two hundred twenty-one".