3221313340 has 96 divisors (see below), whose sum is σ = 8298509184. Its totient is φ = 1025187840.

The previous prime is 3221313331. The next prime is 3221313343. The reversal of 3221313340 is 433131223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221313343) 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, 164470 + ... + 183010.

It is an arithmetic number, because the mean of its divisors is an integer number (86442804).

Almost surely, 2^3221313340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221313340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4149254592).

3221313340 is an abundant number, since it is smaller than the sum of its proper divisors (5077195844).

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

3221313340 is a wasteful number, since it uses less digits than its factorization.

3221313340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18647 (or 18645 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 3221313340 is about 56756.6149448679. The cubic root of 3221313340 is about 1476.8769884108.

Adding to 3221313340 its reverse (433131223), we get a palindrome (3654444563).

The spelling of 3221313340 in words is "three billion, two hundred twenty-one million, three hundred thirteen thousand, three hundred forty".