12818736 has 140 divisors (see below), whose sum is σ = 42828112. Its totient is φ = 3639168.

The previous prime is 12818713. The next prime is 12818737. The reversal of 12818736 is 63781821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 12818736.

It is not an unprimeable number, because it can be changed into a prime (12818737) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 81570 + ... + 81726.

Almost surely, 2^12818736 is an apocalyptic number.

12818736 is a gapful number since it is divisible by the number (16) 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 12818736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21414056).

12818736 is an abundant number, since it is smaller than the sum of its proper divisors (30009376).

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

12818736 is an equidigital number, since it uses as much as digits as its factorization.

12818736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 169 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 12818736 is about 3580.3262421182. The cubic root of 12818736 is about 234.0354975734.

The spelling of 12818736 in words is "twelve million, eight hundred eighteen thousand, seven hundred thirty-six".