3221170240 has 112 divisors (see below), whose sum is σ = 8101876608. Its totient is φ = 1217368064.

The previous prime is 3221170231. The next prime is 3221170247. The reversal of 3221170240 is 420711223.

It is not an unprimeable number, because it can be changed into a prime (3221170247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608244 + ... + 613516.

It is an arithmetic number, because the mean of its divisors is an integer number (72338184).

Almost surely, 2^3221170240 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 3221170240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4050938304).

3221170240 is an abundant number, since it is smaller than the sum of its proper divisors (4880706368).

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

3221170240 is a wasteful number, since it uses less digits than its factorization.

3221170240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5396 (or 5386 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 3221170240 is about 56755.3542848602. The cubic root of 3221170240 is about 1476.8551190463.

Adding to 3221170240 its reverse (420711223), we get a palindrome (3641881463).

The spelling of 3221170240 in words is "three billion, two hundred twenty-one million, one hundred seventy thousand, two hundred forty".