3221440244 has 24 divisors (see below), whose sum is σ = 6151460448. Its totient is φ = 1463948640.

The previous prime is 3221440213. The next prime is 3221440247. The reversal of 3221440244 is 4420441223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221440247) 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, 361547 + ... + 370349.

It is an arithmetic number, because the mean of its divisors is an integer number (256310852).

Almost surely, 2^3221440244 is an apocalyptic number.

It is an amenable number.

3221440244 is a deficient number, since it is larger than the sum of its proper divisors (2930020204).

3221440244 is a wasteful number, since it uses less digits than its factorization.

3221440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17135 (or 17133 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 3221440244 is about 56757.7329004604. The cubic root of 3221440244 is about 1476.8963820676.

Adding to 3221440244 its reverse (4420441223), we get a palindrome (7641881467).

The spelling of 3221440244 in words is "three billion, two hundred twenty-one million, four hundred forty thousand, two hundred forty-four".