12867540 has 48 divisors (see below), whose sum is σ = 41177472. Its totient is φ = 2941056.

The previous prime is 12867509. The next prime is 12867577. The reversal of 12867540 is 4576821.

12867540 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

12867540 is strictly pandigital in base 8.

It is a congruent number.

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, 14899 + ... + 15738.

It is an arithmetic number, because the mean of its divisors is an integer number (857864).

Almost surely, 2^12867540 is an apocalyptic number.

12867540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12867540 is an abundant number, since it is smaller than the sum of its proper divisors (28309932).

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

12867540 is a wasteful number, since it uses less digits than its factorization.

12867540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30656 (or 30654 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12867540 is about 3587.1353473210. The cubic root of 12867540 is about 234.3321311817.

The spelling of 12867540 in words is "twelve million, eight hundred sixty-seven thousand, five hundred forty".