12728760 has 64 divisors (see below), whose sum is σ = 41662080. Its totient is φ = 3085440.

The previous prime is 12728759. The next prime is 12728773. The reversal of 12728760 is 6782721.

It is a super-2 number, since 2×12728760² = 324042662275200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3502 + ... + 6141.

It is an arithmetic number, because the mean of its divisors is an integer number (650970).

Almost surely, 2^12728760 is an apocalyptic number.

12728760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12728760 is an abundant number, since it is smaller than the sum of its proper divisors (28933320).

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

12728760 is a wasteful number, since it uses less digits than its factorization.

12728760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668 (or 9664 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 12728760 is about 3567.7387796754. The cubic root of 12728760 is about 233.4866384821.

The spelling of 12728760 in words is "twelve million, seven hundred twenty-eight thousand, seven hundred sixty".