12666460 has 24 divisors (see below), whose sum is σ = 26666640. Its totient is φ = 5053824.

The previous prime is 12666439. The next prime is 12666461. The reversal of 12666460 is 6466621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12666461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14352 + ... + 15208.

It is an arithmetic number, because the mean of its divisors is an integer number (1111110).

Almost surely, 2^12666460 is an apocalyptic number.

12666460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12666460 is an abundant number, since it is smaller than the sum of its proper divisors (14000180).

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

12666460 is a wasteful number, since it uses less digits than its factorization.

12666460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 12666460 is about 3558.9970497318. The cubic root of 12666460 is about 233.1050874611.

The spelling of 12666460 in words is "twelve million, six hundred sixty-six thousand, four hundred sixty".