12318378 has 8 divisors (see below), whose sum is σ = 24636768. Its totient is φ = 4106124.

The previous prime is 12318349. The next prime is 12318379. The reversal of 12318378 is 87381321.

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

12318378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12318379) 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, 1026526 + ... + 1026537.

It is an arithmetic number, because the mean of its divisors is an integer number (3079596).

Almost surely, 2^12318378 is an apocalyptic number.

12318378 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.

12318378 is a wasteful number, since it uses less digits than its factorization.

12318378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053068.

The product of its digits is 8064, while the sum is 33.

The square root of 12318378 is about 3509.7546922826. The cubic root of 12318378 is about 230.9499338658.

Adding to 12318378 its reverse (87381321), we get a palindrome (99699699).

The spelling of 12318378 in words is "twelve million, three hundred eighteen thousand, three hundred seventy-eight".