3228628 has 24 divisors (see below), whose sum is σ = 6297480. Its totient is φ = 1438080.

The previous prime is 3228593. The next prime is 3228661. The reversal of 3228628 is 8268223.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 2502724 = 852^2 + 1582^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3228628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (262395).

Almost surely, 2^3228628 is an apocalyptic number.

It is an amenable number.

3228628 is a deficient number, since it is larger than the sum of its proper divisors (3068852).

3228628 is a wasteful number, since it uses less digits than its factorization.

3228628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2185 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 3228628 is about 1796.8383344085. The cubic root of 3228628 is about 147.7993995201.

The spelling of 3228628 in words is "three million, two hundred twenty-eight thousand, six hundred twenty-eight".