2343221 has 4 divisors (see below), whose sum is σ = 2347200. Its totient is φ = 2339244.

The previous prime is 2343203. The next prime is 2343223. The reversal of 2343221 is 1223432.

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 2343221 - 2⁶ = 2343157 is a prime.

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 2343221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911 + ... + 2348.

It is an arithmetic number, because the mean of its divisors is an integer number (586800).

2^2343221 is an apocalyptic number.

It is an amenable number.

2343221 is a deficient number, since it is larger than the sum of its proper divisors (3979).

2343221 is an equidigital number, since it uses as much as digits as its factorization.

2343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3978.

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

The square root of 2343221 is about 1530.7583088130. The cubic root of 2343221 is about 132.8223266824.

Adding to 2343221 its reverse (1223432), we get a palindrome (3566653).

The spelling of 2343221 in words is "two million, three hundred forty-three thousand, two hundred twenty-one".