3221244 has 36 divisors (see below), whose sum is σ = 8770216. Its totient is φ = 991008.

The previous prime is 3221243. The next prime is 3221261. The reversal of 3221244 is 4421223.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2974 + ... + 3909.

Almost surely, 2^3221244 is an apocalyptic number.

It is an amenable number.

3221244 is an abundant number, since it is smaller than the sum of its proper divisors (5548972).

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

3221244 is a wasteful number, since it uses less digits than its factorization.

3221244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906 (or 6901 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 3221244 is about 1794.7824380687. The cubic root of 3221244 is about 147.6866391554.

Adding to 3221244 its reverse (4421223), we get a palindrome (7642467).

The spelling of 3221244 in words is "three million, two hundred twenty-one thousand, two hundred forty-four".