4511728 has 40 divisors (see below), whose sum is σ = 9548000. Its totient is φ = 2052864.

The previous prime is 4511711. The next prime is 4511737. The reversal of 4511728 is 8271154.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4511696 and 4511705.

It is a congruent number.

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, 22573 + ... + 22771.

It is an arithmetic number, because the mean of its divisors is an integer number (238700).

Almost surely, 2^4511728 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 4511728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4774000).

4511728 is an abundant number, since it is smaller than the sum of its proper divisors (5036272).

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

4511728 is a wasteful number, since it uses less digits than its factorization.

4511728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 323 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 4511728 is about 2124.0828609073. The cubic root of 4511728 is about 165.2396639611.

The spelling of 4511728 in words is "four million, five hundred eleven thousand, seven hundred twenty-eight".