3220308 has 72 divisors (see below), whose sum is σ = 10028928. Its totient is φ = 848448.

The previous prime is 3220307. The next prime is 3220309. The reversal of 3220308 is 8030223.

It is an interprime number because it is at equal distance from previous prime (3220307) and next prime (3220309).

It is a super-2 number, since 2×3220308² = 20740767229728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2785 + ... + 3767.

Almost surely, 2^3220308 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 3220308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5014464).

3220308 is an abundant number, since it is smaller than the sum of its proper divisors (6808620).

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

3220308 is a wasteful number, since it uses less digits than its factorization.

3220308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3220308 is about 1794.5216632852. The cubic root of 3220308 is about 147.6723332863.

The spelling of 3220308 in words is "three million, two hundred twenty thousand, three hundred eight".