18854226 has 24 divisors (see below), whose sum is σ = 40935180. Its totient is φ = 6271776.

The previous prime is 18854189. The next prime is 18854233. The reversal of 18854226 is 62245881.

It can be written as a sum of positive squares in 2 ways, for example, as 18792225 + 62001 = 4335^2 + 249^2 .

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 12480 + ... + 13908.

Almost surely, 2^18854226 is an apocalyptic number.

18854226 is an abundant number, since it is smaller than the sum of its proper divisors (22080954).

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

18854226 is a wasteful number, since it uses less digits than its factorization.

18854226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170 (or 2167 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 18854226 is about 4342.1453223033. The cubic root of 18854226 is about 266.1559847922.

The spelling of 18854226 in words is "eighteen million, eight hundred fifty-four thousand, two hundred twenty-six".