12781260 has 48 divisors (see below), whose sum is σ = 39765600. Its totient is φ = 3408192.

The previous prime is 12781193. The next prime is 12781267. The reversal of 12781260 is 6218721.

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

It is not an unprimeable number, because it can be changed into a prime (12781267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11295 + ... + 12374.

It is an arithmetic number, because the mean of its divisors is an integer number (828450).

Almost surely, 2^12781260 is an apocalyptic number.

12781260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12781260 is an abundant number, since it is smaller than the sum of its proper divisors (26984340).

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

12781260 is a wasteful number, since it uses less digits than its factorization.

12781260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23687 (or 23679 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12781260 is about 3575.0888100857. The cubic root of 12781260 is about 233.8072047741.

Adding to 12781260 its reverse (6218721), we get a palindrome (18999981).

It can be divided in two parts, 12781 and 260, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 12781260 in words is "twelve million, seven hundred eighty-one thousand, two hundred sixty".