12818500 has 48 divisors (see below), whose sum is σ = 28933632. Its totient is φ = 4956000.

The previous prime is 12818473. The next prime is 12818503. The reversal of 12818500 is 581821.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (12818503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15087 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (602784).

Almost surely, 2^12818500 is an apocalyptic number.

12818500 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 12818500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14466816).

12818500 is an abundant number, since it is smaller than the sum of its proper divisors (16115132).

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

12818500 is a wasteful number, since it uses less digits than its factorization.

12818500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 12818500 is about 3580.2932840760. The cubic root of 12818500 is about 234.0340613237.

The spelling of 12818500 in words is "twelve million, eight hundred eighteen thousand, five hundred".