12878118 has 48 divisors (see below), whose sum is σ = 30687696. Its totient is φ = 3870720.

The previous prime is 12878111. The next prime is 12878119. The reversal of 12878118 is 81187821.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12878111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38046 + ... + 38382.

It is an arithmetic number, because the mean of its divisors is an integer number (639327).

Almost surely, 2^12878118 is an apocalyptic number.

12878118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12878118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15343848).

12878118 is an abundant number, since it is smaller than the sum of its proper divisors (17809578).

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

12878118 is a wasteful number, since it uses less digits than its factorization.

12878118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 546 counting only the distinct ones).

The product of its digits is 7168, while the sum is 36.

The square root of 12878118 is about 3588.6094800075. The cubic root of 12878118 is about 234.3963259528.

It can be divided in two parts, 12878 and 118, that added together give a square (12996 = 114²).

The spelling of 12878118 in words is "twelve million, eight hundred seventy-eight thousand, one hundred eighteen".