12718380 has 96 divisors (see below), whose sum is σ = 38840256. Its totient is φ = 3096576.

The previous prime is 12718351. The next prime is 12718403. The reversal of 12718380 is 8381721.

It is a happy number.

12718380 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37572 + ... + 37908.

It is an arithmetic number, because the mean of its divisors is an integer number (404586).

Almost surely, 2^12718380 is an apocalyptic number.

12718380 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 12718380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19420128).

12718380 is an abundant number, since it is smaller than the sum of its proper divisors (26121876).

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

12718380 is a wasteful number, since it uses less digits than its factorization.

12718380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 12718380 is about 3566.2837800714. The cubic root of 12718380 is about 233.4231536284.

The spelling of 12718380 in words is "twelve million, seven hundred eighteen thousand, three hundred eighty".