11529728 has 40 divisors (see below), whose sum is σ = 26336112. Its totient is φ = 4939776.

The previous prime is 11529709. The next prime is 11529731. The reversal of 11529728 is 82792511.

11529728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1976 + ... + 5192.

Almost surely, 2^11529728 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 11529728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13168056).

11529728 is an abundant number, since it is smaller than the sum of its proper divisors (14806384).

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

11529728 is an frugal number, since it uses more digits than its factorization.

11529728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 3226 counting only the distinct ones).

The product of its digits is 10080, while the sum is 35.

The square root of 11529728 is about 3395.5453170294. The cubic root of 11529728 is about 225.9122012572.

The spelling of 11529728 in words is "eleven million, five hundred twenty-nine thousand, seven hundred twenty-eight".