3220568 has 32 divisors (see below), whose sum is σ = 6577200. Its totient is φ = 1469568.

The previous prime is 3220561. The next prime is 3220577. The reversal of 3220568 is 8650223.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220561) 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, 17903 + ... + 18081.

Almost surely, 2^3220568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288600).

3220568 is an abundant number, since it is smaller than the sum of its proper divisors (3356632).

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

3220568 is a wasteful number, since it uses less digits than its factorization.

3220568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 3220568 is about 1794.5941045261. The cubic root of 3220568 is about 147.6763074169.

The spelling of 3220568 in words is "three million, two hundred twenty thousand, five hundred sixty-eight".