1118268 has 18 divisors (see below), whose sum is σ = 2826824. Its totient is φ = 372744.

The previous prime is 1118267. The next prime is 1118291. The reversal of 1118268 is 8628111.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1118261) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 15496 + ... + 15567.

2^1118268 is an apocalyptic number.

1118268 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1118268 is an abundant number, since it is smaller than the sum of its proper divisors (1708556).

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

1118268 is a wasteful number, since it uses less digits than its factorization.

1118268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31073 (or 31068 counting only the distinct ones).

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

The square root of 1118268 is about 1057.4819147390. The cubic root of 1118268 is about 103.7963222772.

The spelling of 1118268 in words is "one million, one hundred eighteen thousand, two hundred sixty-eight".