12741940 has 12 divisors (see below), whose sum is σ = 26758116. Its totient is φ = 5096768.

The previous prime is 12741923. The next prime is 12741947. The reversal of 12741940 is 4914721.

It can be written as a sum of positive squares in 2 ways, for example, as 9400356 + 3341584 = 3066^2 + 1828^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12741899 and 12741908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12741947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318529 + ... + 318568.

It is an arithmetic number, because the mean of its divisors is an integer number (2229843).

Almost surely, 2^12741940 is an apocalyptic number.

12741940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12741940 is an abundant number, since it is smaller than the sum of its proper divisors (14016176).

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

12741940 is a wasteful number, since it uses less digits than its factorization.

12741940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637106 (or 637104 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 12741940 is about 3569.5854101002. The cubic root of 12741940 is about 233.5671986298.

The spelling of 12741940 in words is "twelve million, seven hundred forty-one thousand, nine hundred forty".