2340221 has 8 divisors (see below), whose sum is σ = 2601984. Its totient is φ = 2090160.

The previous prime is 2340209. The next prime is 2340223. The reversal of 2340221 is 1220432.

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 2340221 - 2¹⁴ = 2323837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2340196 and 2340205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340223) 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, 2501 + ... + 3306.

It is an arithmetic number, because the mean of its divisors is an integer number (325248).

2^2340221 is an apocalyptic number.

It is an amenable number.

2340221 is a deficient number, since it is larger than the sum of its proper divisors (261763).

2340221 is a wasteful number, since it uses less digits than its factorization.

2340221 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 (nonzero) digits is 96, while the sum is 14.

The square root of 2340221 is about 1529.7780884821. The cubic root of 2340221 is about 132.7656188214.

Adding to 2340221 its reverse (1220432), we get a palindrome (3560653).

The spelling of 2340221 in words is "two million, three hundred forty thousand, two hundred twenty-one".