18856226 has 8 divisors (see below), whose sum is σ = 28419024. Its totient is φ = 9383220.

The previous prime is 18856219. The next prime is 18856267. The reversal of 18856226 is 62265881.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18856226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21920 + ... + 22763.

It is an arithmetic number, because the mean of its divisors is an integer number (3552378).

Almost surely, 2^18856226 is an apocalyptic number.

18856226 is a deficient number, since it is larger than the sum of its proper divisors (9562798).

18856226 is a wasteful number, since it uses less digits than its factorization.

18856226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44896.

The product of its digits is 46080, while the sum is 38.

The square root of 18856226 is about 4342.3756171018. The cubic root of 18856226 is about 266.1653954701.

The spelling of 18856226 in words is "eighteen million, eight hundred fifty-six thousand, two hundred twenty-six".