3224220 has 96 divisors (see below), whose sum is σ = 9979200. Its totient is φ = 774144.

The previous prime is 3224197. The next prime is 3224233. The reversal of 3224220 is 224223.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3224220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29526 + ... + 29634.

It is an arithmetic number, because the mean of its divisors is an integer number (103950).

Almost surely, 2^3224220 is an apocalyptic number.

3224220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3224220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4989600).

3224220 is an abundant number, since it is smaller than the sum of its proper divisors (6754980).

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

3224220 is a wasteful number, since it uses less digits than its factorization.

3224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 3224220 is about 1795.6113165159. The cubic root of 3224220 is about 147.7321060782.

Adding to 3224220 its reverse (224223), we get a palindrome (3448443).

The spelling of 3224220 in words is "three million, two hundred twenty-four thousand, two hundred twenty".