12855378 has 16 divisors (see below), whose sum is σ = 25792416. Its totient is φ = 4271520.

The previous prime is 12855377. The next prime is 12855389. The reversal of 12855378 is 87355821.

It is not an unprimeable number, because it can be changed into a prime (12855371) 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, 1251 + ... + 5222.

It is an arithmetic number, because the mean of its divisors is an integer number (1612026).

Almost surely, 2^12855378 is an apocalyptic number.

12855378 is an abundant number, since it is smaller than the sum of its proper divisors (12937038).

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

12855378 is a wasteful number, since it uses less digits than its factorization.

12855378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809.

The product of its digits is 67200, while the sum is 39.

The square root of 12855378 is about 3585.4397219867. The cubic root of 12855378 is about 234.2582800870.

The spelling of 12855378 in words is "twelve million, eight hundred fifty-five thousand, three hundred seventy-eight".