4489128 has 64 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 1282176.

The previous prime is 4489109. The next prime is 4489129. The reversal of 4489128 is 8219844.

4489128 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 4489092 and 4489101.

It is not an unprimeable number, because it can be changed into a prime (4489129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28 + ... + 2996.

It is an arithmetic number, because the mean of its divisors is an integer number (222750).

Almost surely, 2^4489128 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 4489128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7128000).

4489128 is an abundant number, since it is smaller than the sum of its proper divisors (9766872).

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

4489128 is a wasteful number, since it uses less digits than its factorization.

4489128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991 (or 2981 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4489128 is about 2118.7562389289. The cubic root of 4489128 is about 164.9632976217.

The spelling of 4489128 in words is "four million, four hundred eighty-nine thousand, one hundred twenty-eight".