3220353 has 6 divisors (see below), whose sum is σ = 4651634. Its totient is φ = 2146896.

The previous prime is 3220351. The next prime is 3220381. The reversal of 3220353 is 3530223.

It can be written as a sum of positive squares in only one way, i.e., 3196944 + 23409 = 1788^2 + 153^2 .

It is not a de Polignac number, because 3220353 - 2¹ = 3220351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178900 + ... + 178917.

Almost surely, 2^3220353 is an apocalyptic number.

It is an amenable number.

3220353 is a deficient number, since it is larger than the sum of its proper divisors (1431281).

3220353 is a wasteful number, since it uses less digits than its factorization.

3220353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357823 (or 357820 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 3220353 is about 1794.5342014016. The cubic root of 3220353 is about 147.6730211319.

Adding to 3220353 its reverse (3530223), we get a palindrome (6750576).

The spelling of 3220353 in words is "three million, two hundred twenty thousand, three hundred fifty-three".