12783340 has 12 divisors (see below), whose sum is σ = 26845056. Its totient is φ = 5113328.

The previous prime is 12783319. The next prime is 12783347. The reversal of 12783340 is 4338721.

12783340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12783299 and 12783308.

It is not an unprimeable number, because it can be changed into a prime (12783347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319564 + ... + 319603.

It is an arithmetic number, because the mean of its divisors is an integer number (2237088).

Almost surely, 2^12783340 is an apocalyptic number.

12783340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12783340 is an abundant number, since it is smaller than the sum of its proper divisors (14061716).

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

12783340 is a wasteful number, since it uses less digits than its factorization.

12783340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639176 (or 639174 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 12783340 is about 3575.3797001158. The cubic root of 12783340 is about 233.8198872119.

The spelling of 12783340 in words is "twelve million, seven hundred eighty-three thousand, three hundred forty".