3221002240 has 96 divisors (see below), whose sum is σ = 8183579040. Its totient is φ = 1212547072.

The previous prime is 3221002229. The next prime is 3221002241. The reversal of 3221002240 is 422001223.

3221002240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221002241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164829 + ... + 183331.

It is an arithmetic number, because the mean of its divisors is an integer number (85245615).

Almost surely, 2^3221002240 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 3221002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4091789520).

3221002240 is an abundant number, since it is smaller than the sum of its proper divisors (4962576800).

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

3221002240 is a wasteful number, since it uses less digits than its factorization.

3221002240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18547 (or 18527 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3221002240 is about 56753.8742289899. The cubic root of 3221002240 is about 1476.8294434942.

Adding to 3221002240 its reverse (422001223), we get a palindrome (3643003463).

The spelling of 3221002240 in words is "three billion, two hundred twenty-one million, two thousand, two hundred forty".