3220313204240 has 80 divisors (see below), whose sum is σ = 8213516354880. Its totient is φ = 1164480898560.

The previous prime is 3220313204237. The next prime is 3220313204249. The reversal of 3220313204240 is 424023130223.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (3220313204249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10064399 + ... + 10379438.

It is an arithmetic number, because the mean of its divisors is an integer number (102668954436).

Almost surely, 2^{3220313204240} is an apocalyptic number.

It is an amenable number.

3220313204240 is an abundant number, since it is smaller than the sum of its proper divisors (4993203150640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3220313204240 is a wasteful number, since it uses less digits than its factorization.

3220313204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20444040 (or 20444034 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 3220313204240 its reverse (424023130223), we get a palindrome (3644336334463).

The spelling of 3220313204240 in words is "three trillion, two hundred twenty billion, three hundred thirteen million, two hundred four thousand, two hundred forty".