3218239 has 8 divisors (see below), whose sum is σ = 3421440. Its totient is φ = 3018456.

The previous prime is 3218233. The next prime is 3218261. The reversal of 3218239 is 9328123.

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 3218239 - 2⁵ = 3218207 is a prime.

It is a super-2 number, since 2×3218239² = 20714124522242, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218233) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 2824.

It is an arithmetic number, because the mean of its divisors is an integer number (427680).

Almost surely, 2^3218239 is an apocalyptic number.

3218239 is a deficient number, since it is larger than the sum of its proper divisors (203201).

3218239 is a wasteful number, since it uses less digits than its factorization.

3218239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709.

The product of its digits is 2592, while the sum is 28.

The square root of 3218239 is about 1793.9450939201. The cubic root of 3218239 is about 147.6407007515.

The spelling of 3218239 in words is "three million, two hundred eighteen thousand, two hundred thirty-nine".