12783260 has 24 divisors (see below), whose sum is σ = 30680160. Its totient is φ = 4382784.

The previous prime is 12783223. The next prime is 12783283. The reversal of 12783260 is 6238721.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 45515 + ... + 45794.

It is an arithmetic number, because the mean of its divisors is an integer number (1278340).

Almost surely, 2^12783260 is an apocalyptic number.

12783260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12783260 is an abundant number, since it is smaller than the sum of its proper divisors (17896900).

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

12783260 is a wasteful number, since it uses less digits than its factorization.

12783260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91325 (or 91323 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 12783260 is about 3575.3685124753. The cubic root of 12783260 is about 233.8193994513.

The spelling of 12783260 in words is "twelve million, seven hundred eighty-three thousand, two hundred sixty".