12740312 has 16 divisors (see below), whose sum is σ = 25725840. Its totient is φ = 5880096.

The previous prime is 12740303. The next prime is 12740333. The reversal of 12740312 is 21304721.

It is a congruent number.

It is an unprimeable number.

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, 61148 + ... + 61355.

It is an arithmetic number, because the mean of its divisors is an integer number (1607865).

Almost surely, 2^12740312 is an apocalyptic number.

It is an amenable number.

12740312 is an abundant number, since it is smaller than the sum of its proper divisors (12985528).

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

12740312 is a wasteful number, since it uses less digits than its factorization.

12740312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122522 (or 122518 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12740312 is about 3569.3573651289. The cubic root of 12740312 is about 233.5572508093.

The spelling of 12740312 in words is "twelve million, seven hundred forty thousand, three hundred twelve".