1118858 has 16 divisors (see below), whose sum is σ = 1886976. Its totient is φ = 493680.

The previous prime is 1118857. The next prime is 1118861. The reversal of 1118858 is 8588111.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1118851) 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 7 ways as a sum of consecutive naturals, for example, 338 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2^1118858 is an apocalyptic number.

1118858 is a deficient number, since it is larger than the sum of its proper divisors (768118).

1118858 is a wasteful number, since it uses less digits than its factorization.

1118858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909.

The product of its digits is 2560, while the sum is 32.

The square root of 1118858 is about 1057.7608425348. The cubic root of 1118858 is about 103.8145734368.

The spelling of 1118858 in words is "one million, one hundred eighteen thousand, eight hundred fifty-eight".