12540860 has 24 divisors (see below), whose sum is σ = 26834976. Its totient is φ = 4921280.

The previous prime is 12540811. The next prime is 12540877. The reversal of 12540860 is 6804521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4856 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (1118124).

Almost surely, 2^12540860 is an apocalyptic number.

12540860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12540860 is an abundant number, since it is smaller than the sum of its proper divisors (14294116).

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

12540860 is a wasteful number, since it uses less digits than its factorization.

12540860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11893 (or 11891 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 12540860 is about 3541.3076680797. The cubic root of 12540860 is about 232.3320404083.

The spelling of 12540860 in words is "twelve million, five hundred forty thousand, eight hundred sixty".