18026418 has 8 divisors (see below), whose sum is σ = 36052848. Its totient is φ = 6008804.

The previous prime is 18026399. The next prime is 18026423. The reversal of 18026418 is 81462081.

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

18026418 is an admirable number.

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, 1502196 + ... + 1502207.

It is an arithmetic number, because the mean of its divisors is an integer number (4506606).

Almost surely, 2^18026418 is an apocalyptic number.

18026418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18026418 is a wasteful number, since it uses less digits than its factorization.

18026418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004408.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 18026418 is about 4245.7529367593. The cubic root of 18026418 is about 262.2022892405.

Adding to 18026418 its reverse (81462081), we get a palindrome (99488499).

The spelling of 18026418 in words is "eighteen million, twenty-six thousand, four hundred eighteen".