3240221 has 4 divisors (see below), whose sum is σ = 3295200. Its totient is φ = 3185244.

The previous prime is 3240197. The next prime is 3240247. The reversal of 3240221 is 1220423.

3240221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3240221 - 2¹⁴ = 3223837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3240196 and 3240205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3242221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27401 + ... + 27518.

It is an arithmetic number, because the mean of its divisors is an integer number (823800).

Almost surely, 2^3240221 is an apocalyptic number.

It is an amenable number.

3240221 is a deficient number, since it is larger than the sum of its proper divisors (54979).

3240221 is an equidigital number, since it uses as much as digits as its factorization.

3240221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54978.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 3240221 is about 1800.0613878421. The cubic root of 3240221 is about 147.9760887838.

Adding to 3240221 its reverse (1220423), we get a palindrome (4460644).

It can be divided in two parts, 32402 and 21, that added together give a palindrome (32423).

The spelling of 3240221 in words is "three million, two hundred forty thousand, two hundred twenty-one".