12713940 has 144 divisors (see below), whose sum is σ = 41827968. Its totient is φ = 3117312.

The previous prime is 12713933. The next prime is 12713941. The reversal of 12713940 is 4931721.

12713940 is a `hidden beast` number, since 1 + 271 + 394 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153139 + ... + 153221.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

Almost surely, 2^12713940 is an apocalyptic number.

12713940 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 12713940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20913984).

12713940 is an abundant number, since it is smaller than the sum of its proper divisors (29114028).

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

12713940 is a wasteful number, since it uses less digits than its factorization.

12713940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12713940 is about 3565.6612290009. The cubic root of 12713940 is about 233.3959877098.

The spelling of 12713940 in words is "twelve million, seven hundred thirteen thousand, nine hundred forty".