12810078 has 24 divisors (see below), whose sum is σ = 29388528. Its totient is φ = 4018752.

The previous prime is 12810073. The next prime is 12810079. The reversal of 12810078 is 87001821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12810071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20626 + ... + 21237.

It is an arithmetic number, because the mean of its divisors is an integer number (1224522).

Almost surely, 2^12810078 is an apocalyptic number.

12810078 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12810078 is an abundant number, since it is smaller than the sum of its proper divisors (16578450).

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

12810078 is a wasteful number, since it uses less digits than its factorization.

12810078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41888 (or 41885 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 12810078 is about 3579.1169301938. The cubic root of 12810078 is about 233.9827951409.

Adding to 12810078 its reverse (87001821), we get a palindrome (99811899).

The spelling of 12810078 in words is "twelve million, eight hundred ten thousand, seventy-eight".