3221324340 has 288 divisors, whose sum is σ = 10478084736. Its totient is φ = 734469120.

The previous prime is 3221324329. The next prime is 3221324357. The reversal of 3221324340 is 434231223.

It is a self number, because there is not a number n which added to its sum of digits gives 3221324340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15266835 + ... + 15267045.

Almost surely, 2^3221324340 is an apocalyptic number.

3221324340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3221324340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5239042368).

3221324340 is an abundant number, since it is smaller than the sum of its proper divisors (7256760396).

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

3221324340 is a wasteful number, since it uses less digits than its factorization.

3221324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3221324340 is about 56756.7118497892. The cubic root of 3221324340 is about 1476.8786694672.

Adding to 3221324340 its reverse (434231223), we get a palindrome (3655555563).

The spelling of 3221324340 in words is "three billion, two hundred twenty-one million, three hundred twenty-four thousand, three hundred forty".