3221244620 has 48 divisors (see below), whose sum is σ = 7420896000. Its totient is φ = 1164803520.

The previous prime is 3221244619. The next prime is 3221244623. The reversal of 3221244620 is 264421223.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221244620.

It is not an unprimeable number, because it can be changed into a prime (3221244623) 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, 1520 + ... + 80279.

It is an arithmetic number, because the mean of its divisors is an integer number (154602000).

Almost surely, 2^3221244620 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 3221244620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3710448000).

3221244620 is an abundant number, since it is smaller than the sum of its proper divisors (4199651380).

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

3221244620 is a wasteful number, since it uses less digits than its factorization.

3221244620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81998 (or 81996 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 3221244620 is about 56756.0095496503. The cubic root of 3221244620 is about 1476.8664863063.

Adding to 3221244620 its reverse (264421223), we get a palindrome (3485665843).

The spelling of 3221244620 in words is "three billion, two hundred twenty-one million, two hundred forty-four thousand, six hundred twenty".