18112226 has 8 divisors (see below), whose sum is σ = 29638224. Its totient is φ = 8232820.

The previous prime is 18112219. The next prime is 18112243. The reversal of 18112226 is 62221181.

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

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, 411620 + ... + 411663.

It is an arithmetic number, because the mean of its divisors is an integer number (3704778).

Almost surely, 2^18112226 is an apocalyptic number.

18112226 is a deficient number, since it is larger than the sum of its proper divisors (11525998).

18112226 is a wasteful number, since it uses less digits than its factorization.

18112226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823296.

The product of its digits is 384, while the sum is 23.

The square root of 18112226 is about 4255.8460968414. The cubic root of 18112226 is about 262.6176693918.

The spelling of 18112226 in words is "eighteen million, one hundred twelve thousand, two hundred twenty-six".