12728376 has 48 divisors (see below), whose sum is σ = 36504000. Its totient is φ = 3992832.

The previous prime is 12728371. The next prime is 12728377. The reversal of 12728376 is 67382721.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12728376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12728371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3976 + ... + 6423.

It is an arithmetic number, because the mean of its divisors is an integer number (760500).

Almost surely, 2^12728376 is an apocalyptic number.

It is an amenable number.

12728376 is an abundant number, since it is smaller than the sum of its proper divisors (23775624).

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

12728376 is a wasteful number, since it uses less digits than its factorization.

12728376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428 (or 10421 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12728376 is about 3567.6849636704. The cubic root of 12728376 is about 233.4842905244.

The spelling of 12728376 in words is "twelve million, seven hundred twenty-eight thousand, three hundred seventy-six".