4563728 has 40 divisors (see below), whose sum is σ = 9796248. Its totient is φ = 2045952.

The previous prime is 4563703. The next prime is 4563733. The reversal of 4563728 is 8273654.

It is a happy number.

4563728 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 984064 + 3579664 = 992^2 + 1892^2 .

It is a super-2 number, since 2×4563728² = 41655226515968, 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, 7400 + ... + 7992.

Almost surely, 2^4563728 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 4563728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4898124).

4563728 is an abundant number, since it is smaller than the sum of its proper divisors (5232520).

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

4563728 is a wasteful number, since it uses less digits than its factorization.

4563728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 645 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 4563728 is about 2136.2883700475. The cubic root of 4563728 is about 165.8720647786.

The spelling of 4563728 in words is "four million, five hundred sixty-three thousand, seven hundred twenty-eight".