3320728313 has 16 divisors (see below), whose sum is σ = 3824520960. Its totient is φ = 2824372800.

The previous prime is 3320728297. The next prime is 3320728321. The reversal of 3320728313 is 3138270233.

It is a cyclic number.

It is not a de Polignac number, because 3320728313 - 2⁴ = 3320728297 is a prime.

It is a super-2 number, since 2×3320728313² = 22054473057519651938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3320728313.

It is not an unprimeable number, because it can be changed into a prime (3320728373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495203 + ... + 501863.

It is an arithmetic number, because the mean of its divisors is an integer number (239032560).

Almost surely, 2^3320728313 is an apocalyptic number.

It is an amenable number.

3320728313 is a deficient number, since it is larger than the sum of its proper divisors (503792647).

3320728313 is a wasteful number, since it uses less digits than its factorization.

3320728313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 3320728313 is about 57625.7608453025. The cubic root of 3320728313 is about 1491.9162638055.

Adding to 3320728313 its reverse (3138270233), we get a palindrome (6458998546).

The spelling of 3320728313 in words is "three billion, three hundred twenty million, seven hundred twenty-eight thousand, three hundred thirteen".