18285118 has 8 divisors (see below), whose sum is σ = 27473040. Its totient is φ = 9127440.

The previous prime is 18285101. The next prime is 18285121. The reversal of 18285118 is 81158281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5983 + ... + 8506.

It is an arithmetic number, because the mean of its divisors is an integer number (3434130).

Almost surely, 2^18285118 is an apocalyptic number.

18285118 is a deficient number, since it is larger than the sum of its proper divisors (9187922).

18285118 is a wasteful number, since it uses less digits than its factorization.

18285118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15122.

The product of its digits is 5120, while the sum is 34.

The square root of 18285118 is about 4276.1101482539. The cubic root of 18285118 is about 263.4506386875.

The spelling of 18285118 in words is "eighteen million, two hundred eighty-five thousand, one hundred eighteen".