3243256 has 8 divisors (see below), whose sum is σ = 6081120. Its totient is φ = 1621624.

The previous prime is 3243239. The next prime is 3243271. The reversal of 3243256 is 6523423.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 3243256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202696 + ... + 202711.

It is an arithmetic number, because the mean of its divisors is an integer number (760140).

Almost surely, 2^3243256 is an apocalyptic number.

It is an amenable number.

3243256 is a deficient number, since it is larger than the sum of its proper divisors (2837864).

3243256 is a wasteful number, since it uses less digits than its factorization.

3243256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405413 (or 405409 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 3243256 is about 1800.9042173308. The cubic root of 3243256 is about 148.0222756829.

Adding to 3243256 its reverse (6523423), we get a palindrome (9766679).

The spelling of 3243256 in words is "three million, two hundred forty-three thousand, two hundred fifty-six".