12380418 has 16 divisors (see below), whose sum is σ = 27512160. Its totient is φ = 4126788.

The previous prime is 12380413. The next prime is 12380443. The reversal of 12380418 is 81408321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12380391 and 12380400.

It is not an unprimeable number, because it can be changed into a prime (12380413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114580 + ... + 114687.

It is an arithmetic number, because the mean of its divisors is an integer number (1719510).

Almost surely, 2^12380418 is an apocalyptic number.

12380418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12380418 is an abundant number, since it is smaller than the sum of its proper divisors (15131742).

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

12380418 is a wasteful number, since it uses less digits than its factorization.

12380418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229278 (or 229272 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12380418 is about 3518.5818165846. The cubic root of 12380418 is about 231.3370017902.

Adding to 12380418 its reverse (81408321), we get a palindrome (93788739).

The spelling of 12380418 in words is "twelve million, three hundred eighty thousand, four hundred eighteen".