12768340 has 24 divisors (see below), whose sum is σ = 28876680. Its totient is φ = 4714368.

The previous prime is 12768313. The next prime is 12768341. The reversal of 12768340 is 4386721.

It can be written as a sum of positive squares in 4 ways, for example, as 51984 + 12716356 = 228^2 + 3566^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24295 + ... + 24814.

It is an arithmetic number, because the mean of its divisors is an integer number (1203195).

Almost surely, 2^12768340 is an apocalyptic number.

12768340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12768340 is an abundant number, since it is smaller than the sum of its proper divisors (16108340).

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

12768340 is a wasteful number, since it uses less digits than its factorization.

12768340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49131 (or 49129 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12768340 is about 3573.2814050953. The cubic root of 12768340 is about 233.7283964897.

The spelling of 12768340 in words is "twelve million, seven hundred sixty-eight thousand, three hundred forty".