12318450 has 48 divisors (see below), whose sum is σ = 31310496. Its totient is φ = 3203200.

The previous prime is 12318437. The next prime is 12318451. The reversal of 12318450 is 5481321.

It is a self number, because there is not a number n which added to its sum of digits gives 12318450.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5149 + ... + 7151.

It is an arithmetic number, because the mean of its divisors is an integer number (652302).

Almost surely, 2^12318450 is an apocalyptic number.

12318450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12318450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15655248).

12318450 is an abundant number, since it is smaller than the sum of its proper divisors (18992046).

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

12318450 is a wasteful number, since it uses less digits than its factorization.

12318450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12318450 is about 3509.7649493948. The cubic root of 12318450 is about 230.9503838266.

Adding to 12318450 its reverse (5481321), we get a palindrome (17799771).

The spelling of 12318450 in words is "twelve million, three hundred eighteen thousand, four hundred fifty".