12417318 has 12 divisors (see below), whose sum is σ = 26904228. Its totient is φ = 4139100.

The previous prime is 12417313. The next prime is 12417319. The reversal of 12417318 is 81371421.

It is a junction number, because it is equal to n+sod(n) for n = 12417291 and 12417300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12417313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 344908 + ... + 344943.

It is an arithmetic number, because the mean of its divisors is an integer number (2242019).

Almost surely, 2^12417318 is an apocalyptic number.

12417318 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12417318 is an abundant number, since it is smaller than the sum of its proper divisors (14486910).

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

12417318 is a wasteful number, since it uses less digits than its factorization.

12417318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689859 (or 689856 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 12417318 is about 3523.8215051276. The cubic root of 12417318 is about 231.5666081598.

Adding to 12417318 its reverse (81371421), we get a palindrome (93788739).

The spelling of 12417318 in words is "twelve million, four hundred seventeen thousand, three hundred eighteen".