3220284 has 24 divisors (see below), whose sum is σ = 7591248. Its totient is φ = 1062400.

The previous prime is 3220271. The next prime is 3220289. The reversal of 3220284 is 4820223.

It is a self number, because there is not a number n which added to its sum of digits gives 3220284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220289) 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, 117 + ... + 2540.

It is an arithmetic number, because the mean of its divisors is an integer number (316302).

Almost surely, 2^3220284 is an apocalyptic number.

It is an amenable number.

3220284 is an abundant number, since it is smaller than the sum of its proper divisors (4370964).

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

3220284 is a wasteful number, since it uses less digits than its factorization.

3220284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3220284 is about 1794.5149762540. The cubic root of 3220284 is about 147.6719664327.

The spelling of 3220284 in words is "three million, two hundred twenty thousand, two hundred eighty-four".