1818126 has 56 divisors (see below), whose sum is σ = 4328280. Its totient is φ = 571536.

The previous prime is 1818109. The next prime is 1818151. The reversal of 1818126 is 6218181.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1818126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 42261 + ... + 42303.

2^1818126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1818126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2164140).

1818126 is an abundant number, since it is smaller than the sum of its proper divisors (2510154).

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

1818126 is an equidigital number, since it uses as much as digits as its factorization.

1818126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 77 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 1818126 is about 1348.3790268318. The cubic root of 1818126 is about 122.0509954329.

The spelling of 1818126 in words is "one million, eight hundred eighteen thousand, one hundred twenty-six".