3240321 has 32 divisors (see below), whose sum is σ = 5222400. Its totient is φ = 1785168.

The previous prime is 3240311. The next prime is 3240329. The reversal of 3240321 is 1230423.

It is not a de Polignac number, because 3240321 - 2¹¹ = 3238273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3240321.

It is not an unprimeable number, because it can be changed into a prime (3240329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48330 + ... + 48396.

It is an arithmetic number, because the mean of its divisors is an integer number (163200).

Almost surely, 2^3240321 is an apocalyptic number.

It is an amenable number.

3240321 is a deficient number, since it is larger than the sum of its proper divisors (1982079).

3240321 is an equidigital number, since it uses as much as digits as its factorization.

3240321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 3240321 is about 1800.0891644582. The cubic root of 3240321 is about 147.9776110520.

Adding to 3240321 its reverse (1230423), we get a palindrome (4470744).

The spelling of 3240321 in words is "three million, two hundred forty thousand, three hundred twenty-one".