18826018 has 8 divisors (see below), whose sum is σ = 28364112. Its totient is φ = 9371316.

The previous prime is 18825973. The next prime is 18826037. The reversal of 18826018 is 81062881.

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

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, 20280 + ... + 21187.

It is an arithmetic number, because the mean of its divisors is an integer number (3545514).

Almost surely, 2^18826018 is an apocalyptic number.

18826018 is a deficient number, since it is larger than the sum of its proper divisors (9538094).

18826018 is a wasteful number, since it uses less digits than its factorization.

18826018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41696.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 18826018 is about 4338.8959425181. The cubic root of 18826018 is about 266.0231856474.

Adding to 18826018 its reverse (81062881), we get a palindrome (99888899).

The spelling of 18826018 in words is "eighteen million, eight hundred twenty-six thousand, eighteen".