12660860 has 24 divisors (see below), whose sum is σ = 27155520. Its totient is φ = 4956224.

The previous prime is 12660847. The next prime is 12660881. The reversal of 12660860 is 6806621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5795 + ... + 7674.

It is an arithmetic number, because the mean of its divisors is an integer number (1131480).

Almost surely, 2^12660860 is an apocalyptic number.

12660860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12660860 is an abundant number, since it is smaller than the sum of its proper divisors (14494660).

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

12660860 is a wasteful number, since it uses less digits than its factorization.

12660860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 12660860 is about 3558.2102242560. The cubic root of 12660860 is about 233.0707295080.

The spelling of 12660860 in words is "twelve million, six hundred sixty thousand, eight hundred sixty".