232525728 has 144 divisors (see below), whose sum is σ = 726485760. Its totient is φ = 72907776.

The previous prime is 232525721. The next prime is 232525739. The reversal of 232525728 is 827525232.

It is a happy number.

232525728 is a `hidden beast` number, since 2 + 32 + 52 + 572 + 8 = 666.

232525728 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 (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 232525692 and 232525701.

It is not an unprimeable number, because it can be changed into a prime (232525721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131313 + ... + 133071.

It is an arithmetic number, because the mean of its divisors is an integer number (5045040).

Almost surely, 2^232525728 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 232525728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363242880).

232525728 is an abundant number, since it is smaller than the sum of its proper divisors (493960032).

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

232525728 is a wasteful number, since it uses less digits than its factorization.

232525728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1781 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 232525728 is about 15248.7943129941. The cubic root of 232525728 is about 614.9271537751.

The spelling of 232525728 in words is "two hundred thirty-two million, five hundred twenty-five thousand, seven hundred twenty-eight".