12766140 has 96 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 3325248.

The previous prime is 12766123. The next prime is 12766151. The reversal of 12766140 is 4166721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25129 + ... + 25631.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^12766140 is an apocalyptic number.

12766140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12766140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).

12766140 is an abundant number, since it is smaller than the sum of its proper divisors (27876420).

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

12766140 is a wasteful number, since it uses less digits than its factorization.

12766140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12766140 is about 3572.9735515394. The cubic root of 12766140 is about 233.7149718261.

The spelling of 12766140 in words is "twelve million, seven hundred sixty-six thousand, one hundred forty".