12518320 has 40 divisors (see below), whose sum is σ = 29310624. Its totient is φ = 4972032.

The previous prime is 12518287. The next prime is 12518329. The reversal of 12518320 is 2381521.

12518320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12518291 and 12518300.

It is not an unprimeable number, because it can be changed into a prime (12518329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12892 + ... + 13828.

Almost surely, 2^12518320 is an apocalyptic number.

12518320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12518320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14655312).

12518320 is an abundant number, since it is smaller than the sum of its proper divisors (16792304).

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

12518320 is a wasteful number, since it uses less digits than its factorization.

12518320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1111 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 12518320 is about 3538.1237965905. The cubic root of 12518320 is about 232.1927648797.

Adding to 12518320 its reverse (2381521), we get a palindrome (14899841).

The spelling of 12518320 in words is "twelve million, five hundred eighteen thousand, three hundred twenty".