4381328 has 20 divisors (see below), whose sum is σ = 9701760. Its totient is φ = 1877664.

The previous prime is 4381319. The next prime is 4381357. The reversal of 4381328 is 8231834.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4381328.

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, 19448 + ... + 19671.

It is an arithmetic number, because the mean of its divisors is an integer number (485088).

Almost surely, 2^4381328 is an apocalyptic number.

It is an amenable number.

4381328 is an abundant number, since it is smaller than the sum of its proper divisors (5320432).

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

4381328 is a wasteful number, since it uses less digits than its factorization.

4381328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39134 (or 39128 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 4381328 is about 2093.1622010728. The cubic root of 4381328 is about 163.6321320267.

The spelling of 4381328 in words is "four million, three hundred eighty-one thousand, three hundred twenty-eight".