3220944 has 20 divisors (see below), whose sum is σ = 8320896. Its totient is φ = 1073632.

The previous prime is 3220907. The next prime is 3220951. The reversal of 3220944 is 4490223.

It is a happy number.

It is a super-2 number, since 2×3220944² = 20748960502272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33504 + ... + 33599.

Almost surely, 2^3220944 is an apocalyptic number.

It is an amenable number.

3220944 is an abundant number, since it is smaller than the sum of its proper divisors (5099952).

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

3220944 is a wasteful number, since it uses less digits than its factorization.

3220944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67114 (or 67108 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3220944 is about 1794.6988605334. The cubic root of 3220944 is about 147.6820542428.

The spelling of 3220944 in words is "three million, two hundred twenty thousand, nine hundred forty-four".