3328644 has 48 divisors (see below), whose sum is σ = 8580096. Its totient is φ = 996000.

The previous prime is 3328621. The next prime is 3328679. The reversal of 3328644 is 4468233.

It is a super-2 number, since 2×3328644² = 22159741757472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19849 + ... + 20015.

It is an arithmetic number, because the mean of its divisors is an integer number (178752).

Almost surely, 2^3328644 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 3328644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4290048).

3328644 is an abundant number, since it is smaller than the sum of its proper divisors (5251452).

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

3328644 is a wasteful number, since it uses less digits than its factorization.

3328644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 3328644 is about 1824.4571795468. The cubic root of 3328644 is about 149.3100760089.

The spelling of 3328644 in words is "three million, three hundred twenty-eight thousand, six hundred forty-four".