18949226 has 8 divisors (see below), whose sum is σ = 28442340. Its totient is φ = 9468448.

The previous prime is 18949211. The next prime is 18949243. The reversal of 18949226 is 62294981.

It can be written as a sum of positive squares in 2 ways, for example, as 16008001 + 2941225 = 4001^2 + 1715^2 .

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

It is a Curzon 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, 4190 + ... + 7446.

Almost surely, 2^18949226 is an apocalyptic number.

18949226 is a deficient number, since it is larger than the sum of its proper divisors (9493114).

18949226 is a wasteful number, since it uses less digits than its factorization.

18949226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6168.

The product of its digits is 62208, while the sum is 41.

The square root of 18949226 is about 4353.0708700870. The cubic root of 18949226 is about 266.6022590978.

The spelling of 18949226 in words is "eighteen million, nine hundred forty-nine thousand, two hundred twenty-six".