12660384 has 96 divisors (see below), whose sum is σ = 38223360. Its totient is φ = 3628800.

The previous prime is 12660377. The next prime is 12660409. The reversal of 12660384 is 48306621.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19749 + ... + 20379.

It is an arithmetic number, because the mean of its divisors is an integer number (398160).

Almost surely, 2^12660384 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 12660384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19111680).

12660384 is an abundant number, since it is smaller than the sum of its proper divisors (25562976).

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

12660384 is a wasteful number, since it uses less digits than its factorization.

12660384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 12660384 is about 3558.1433360673. The cubic root of 12660384 is about 233.0678086149.

The spelling of 12660384 in words is "twelve million, six hundred sixty thousand, three hundred eighty-four".