1118286 has 56 divisors (see below), whose sum is σ = 2754360. Its totient is φ = 338256.

The previous prime is 1118267. The next prime is 1118291. The reversal of 1118286 is 6828111.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 18925 + ... + 18983.

It is an arithmetic number, because the mean of its divisors is an integer number (49185).

2^1118286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1118286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377180).

1118286 is an abundant number, since it is smaller than the sum of its proper divisors (1636074).

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

1118286 is an equidigital number, since it uses as much as digits as its factorization.

1118286 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 1118286 is about 1057.4904254886. The cubic root of 1118286 is about 103.7968791871.

The spelling of 1118286 in words is "one million, one hundred eighteen thousand, two hundred eighty-six".