12752928 has 36 divisors (see below), whose sum is σ = 36266958. Its totient is φ = 4250880.

The previous prime is 12752921. The next prime is 12752951. The reversal of 12752928 is 82925721.

12752928 is a `hidden beast` number, since 127 + 529 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12027024 + 725904 = 3468^2 + 852^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 = 12752892 and 12752901.

It is not an unprimeable number, because it can be changed into a prime (12752921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21853 + ... + 22428.

Almost surely, 2^12752928 is an apocalyptic number.

12752928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12752928 is an abundant number, since it is smaller than the sum of its proper divisors (23514030).

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

12752928 is a wasteful number, since it uses less digits than its factorization.

12752928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44297 (or 44286 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 12752928 is about 3571.1241927438. The cubic root of 12752928 is about 233.6343181582.

The spelling of 12752928 in words is "twelve million, seven hundred fifty-two thousand, nine hundred twenty-eight".