3220841920 has 112 divisors (see below), whose sum is σ = 7922654208. Its totient is φ = 1246371840.

The previous prime is 3220841909. The next prime is 3220841933. The reversal of 3220841920 is 291480223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1665274 + ... + 1667206.

It is an arithmetic number, because the mean of its divisors is an integer number (70737984).

Almost surely, 2^3220841920 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 3220841920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3961327104).

3220841920 is an abundant number, since it is smaller than the sum of its proper divisors (4701812288).

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

3220841920 is a wasteful number, since it uses less digits than its factorization.

3220841920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118 (or 2108 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 3220841920 is about 56752.4617968243. The cubic root of 3220841920 is about 1476.8049408490.

The spelling of 3220841920 in words is "three billion, two hundred twenty million, eight hundred forty-one thousand, nine hundred twenty".