12864378 has 8 divisors (see below), whose sum is σ = 25728768. Its totient is φ = 4288124.

The previous prime is 12864373. The next prime is 12864389. The reversal of 12864378 is 87346821.

12864378 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

12864378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12864373) 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, 1072026 + ... + 1072037.

It is an arithmetic number, because the mean of its divisors is an integer number (3216096).

Almost surely, 2^12864378 is an apocalyptic number.

12864378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12864378 is a wasteful number, since it uses less digits than its factorization.

12864378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144068.

The product of its digits is 64512, while the sum is 39.

The square root of 12864378 is about 3586.6945785779. The cubic root of 12864378 is about 234.3129351038.

The spelling of 12864378 in words is "twelve million, eight hundred sixty-four thousand, three hundred seventy-eight".