11725728 has 48 divisors (see below), whose sum is σ = 35179200. Its totient is φ = 3350016.

The previous prime is 11725711. The next prime is 11725729. The reversal of 11725728 is 82752711.

11725728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (11725729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8053 + ... + 9396.

It is an arithmetic number, because the mean of its divisors is an integer number (732900).

Almost surely, 2^11725728 is an apocalyptic number.

It is an amenable number.

11725728 is an abundant number, since it is smaller than the sum of its proper divisors (23453472).

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

11725728 is a wasteful number, since it uses less digits than its factorization.

11725728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17469 (or 17461 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 11725728 is about 3424.2850348649. The cubic root of 11725728 is about 227.1851491318.

The spelling of 11725728 in words is "eleven million, seven hundred twenty-five thousand, seven hundred twenty-eight".