132401728 has 28 divisors (see below), whose sum is σ = 276565360. Its totient is φ = 62716032.

The previous prime is 132401701. The next prime is 132401741. The reversal of 132401728 is 827104231.

It is a junction number, because it is equal to n+sod(n) for n = 132401696 and 132401705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53226 + ... + 55657.

Almost surely, 2^132401728 is an apocalyptic number.

It is an amenable number.

132401728 is an abundant number, since it is smaller than the sum of its proper divisors (144163632).

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

132401728 is a wasteful number, since it uses less digits than its factorization.

132401728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108914 (or 108904 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 132401728 is about 11506.5949785330. The cubic root of 132401728 is about 509.6803430686.

Adding to 132401728 its reverse (827104231), we get a palindrome (959505959).

The spelling of 132401728 in words is "one hundred thirty-two million, four hundred one thousand, seven hundred twenty-eight".