4003328 has 40 divisors (see below), whose sum is σ = 9149712. Its totient is φ = 1714176.

The previous prime is 4003297. The next prime is 4003333. The reversal of 4003328 is 8233004.

It is a zygodrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026 + ... + 4142.

Almost surely, 2^4003328 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 4003328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4574856).

4003328 is an abundant number, since it is smaller than the sum of its proper divisors (5146384).

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

4003328 is an equidigital number, since it uses as much as digits as its factorization.

4003328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 4003328 is about 2000.8318270160. The cubic root of 4003328 is about 158.7841169157.

The spelling of 4003328 in words is "four million, three thousand, three hundred twenty-eight".