3328640 has 64 divisors (see below), whose sum is σ = 9106560. Its totient is φ = 1139712.

The previous prime is 3328621. The next prime is 3328679. The reversal of 3328640 is 468233.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×3328640² = 22159688499200, which contains 22 as substring.

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, 4109 + ... + 4851.

It is an arithmetic number, because the mean of its divisors is an integer number (142290).

Almost surely, 2^3328640 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 3328640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4553280).

3328640 is an abundant number, since it is smaller than the sum of its proper divisors (5777920).

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

3328640 is an equidigital number, since it uses as much as digits as its factorization.

3328640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 3328640 is about 1824.4560833300. The cubic root of 3328640 is about 149.3100162007.

The spelling of 3328640 in words is "three million, three hundred twenty-eight thousand, six hundred forty".