3220353345 has 32 divisors (see below), whose sum is σ = 5623925760. Its totient is φ = 1560565440.

The previous prime is 3220353341. The next prime is 3220353359. The reversal of 3220353345 is 5433530223.

It is not a de Polignac number, because 3220353345 - 2² = 3220353341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3220353341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415092 + ... + 422778.

It is an arithmetic number, because the mean of its divisors is an integer number (175747680).

Almost surely, 2^3220353345 is an apocalyptic number.

It is an amenable number.

3220353345 is a deficient number, since it is larger than the sum of its proper divisors (2403572415).

3220353345 is a wasteful number, since it uses less digits than its factorization.

3220353345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245.

The product of its (nonzero) digits is 32400, while the sum is 30.

The square root of 3220353345 is about 56748.1571947495. The cubic root of 3220353345 is about 1476.7302640535.

Adding to 3220353345 its reverse (5433530223), we get a palindrome (8653883568).

The spelling of 3220353345 in words is "three billion, two hundred twenty million, three hundred fifty-three thousand, three hundred forty-five".