12680544 has 48 divisors (see below), whose sum is σ = 34739712. Its totient is φ = 4042368.

The previous prime is 12680537. The next prime is 12680557. The reversal of 12680544 is 44508621.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×12680544² = 321592392271872, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 664 + ... + 5079.

It is an arithmetic number, because the mean of its divisors is an integer number (723744).

Almost surely, 2^12680544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12680544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17369856).

12680544 is an abundant number, since it is smaller than the sum of its proper divisors (22059168).

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

12680544 is a wasteful number, since it uses less digits than its factorization.

12680544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779 (or 5771 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 12680544 is about 3560.9751473438. The cubic root of 12680544 is about 233.1914529749.

The spelling of 12680544 in words is "twelve million, six hundred eighty thousand, five hundred forty-four".