18102418 has 8 divisors (see below), whose sum is σ = 27204912. Its totient is φ = 9034116.

The previous prime is 18102397. The next prime is 18102437. The reversal of 18102418 is 81420181.

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

It is a junction number, because it is equal to n+sod(n) for n = 18102392 and 18102401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7180 + ... + 9367.

It is an arithmetic number, because the mean of its divisors is an integer number (3400614).

Almost surely, 2^18102418 is an apocalyptic number.

18102418 is a deficient number, since it is larger than the sum of its proper divisors (9102494).

18102418 is a wasteful number, since it uses less digits than its factorization.

18102418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18102418 is about 4254.6936434954. The cubic root of 18102418 is about 262.5702572335.

Adding to 18102418 its reverse (81420181), we get a palindrome (99522599).

The spelling of 18102418 in words is "eighteen million, one hundred two thousand, four hundred eighteen".