532189728 has 72 divisors (see below), whose sum is σ = 1729623168. Its totient is φ = 152053632.

The previous prime is 532189711. The next prime is 532189729. The reversal of 532189728 is 827981235.

It is a happy number.

532189728 is a `hidden beast` number, since 532 + 1 + 8 + 97 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (532189729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129976 + ... + 134007.

It is an arithmetic number, because the mean of its divisors is an integer number (24022544).

Almost surely, 2^532189728 is an apocalyptic number.

It is an amenable number.

532189728 is an abundant number, since it is smaller than the sum of its proper divisors (1197433440).

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

532189728 is a wasteful number, since it uses less digits than its factorization.

532189728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264006 (or 263995 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 532189728 is about 23069.2376987190. The cubic root of 532189728 is about 810.3802147317.

The spelling of 532189728 in words is "five hundred thirty-two million, one hundred eighty-nine thousand, seven hundred twenty-eight".