3221444020 has 24 divisors (see below), whose sum is σ = 6794076744. Its totient is φ = 1283045376.

The previous prime is 3221444003. The next prime is 3221444041. The reversal of 3221444020 is 204441223.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 539447076 + 2681996944 = 23226^2 + 51788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3221443982 and 3221444000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340989 + ... + 350308.

It is an arithmetic number, because the mean of its divisors is an integer number (283086531).

Almost surely, 2^3221444020 is an apocalyptic number.

It is an amenable number.

3221444020 is an abundant number, since it is smaller than the sum of its proper divisors (3572632724).

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

3221444020 is a wasteful number, since it uses less digits than its factorization.

3221444020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691539 (or 691537 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 3221444020 is about 56757.7661646404. The cubic root of 3221444020 is about 1476.8969591137.

Adding to 3221444020 its reverse (204441223), we get a palindrome (3425885243).

The spelling of 3221444020 in words is "three billion, two hundred twenty-one million, four hundred forty-four thousand, twenty".