18830118 has 16 divisors (see below), whose sum is σ = 39875760. Its totient is φ = 5907456.

The previous prime is 18830099. The next prime is 18830167. The reversal of 18830118 is 81103881.

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 7 ways as a sum of consecutive naturals, for example, 92203 + ... + 92406.

It is an arithmetic number, because the mean of its divisors is an integer number (2492235).

Almost surely, 2^18830118 is an apocalyptic number.

18830118 is an abundant number, since it is smaller than the sum of its proper divisors (21045642).

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

18830118 is a wasteful number, since it uses less digits than its factorization.

18830118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184631.

The product of its (nonzero) digits is 1536, while the sum is 30.

The square root of 18830118 is about 4339.3683872195. The cubic root of 18830118 is about 266.0424960842.

Adding to 18830118 its reverse (81103881), we get a palindrome (99933999).

The spelling of 18830118 in words is "eighteen million, eight hundred thirty thousand, one hundred eighteen".