18670118 has 8 divisors (see below), whose sum is σ = 28035720. Its totient is φ = 9324880.

The previous prime is 18670117. The next prime is 18670121. The reversal of 18670118 is 81107681.

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

It is a super-2 number, since 2×18670118² = 697146612267848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18670111) by changing a digit.

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, 2543 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (3504465).

Almost surely, 2^18670118 is an apocalyptic number.

18670118 is a deficient number, since it is larger than the sum of its proper divisors (9365602).

18670118 is a wasteful number, since it uses less digits than its factorization.

18670118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 18670118 is about 4320.8931946994. The cubic root of 18670118 is about 265.2868283913.

Adding to 18670118 its reverse (81107681), we get a palindrome (99777799).

The spelling of 18670118 in words is "eighteen million, six hundred seventy thousand, one hundred eighteen".