230528 has 16 divisors (see below), whose sum is σ = 459510. Its totient is φ = 115200.

The previous prime is 230507. The next prime is 230539. The reversal of 230528 is 825032.

It can be written as a sum of positive squares in only one way, i.e., 222784 + 7744 = 472^2 + 88^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

230528 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 773 + ... + 1028.

2²³⁰⁵²⁸ is an apocalyptic number.

It is an amenable number.

230528 is a deficient number, since it is larger than the sum of its proper divisors (228982).

230528 is an equidigital number, since it uses as much as digits as its factorization.

230528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1803 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 230528 is about 480.1333148200. The cubic root of 230528 is about 61.3161052221.

The spelling of 230528 in words is "two hundred thirty thousand, five hundred twenty-eight".