18146226 has 16 divisors (see below), whose sum is σ = 41477184. Its totient is φ = 5184624.

The previous prime is 18146203. The next prime is 18146239. The reversal of 18146226 is 62264181.

It is a junction number, because it is equal to n+sod(n) for n = 18146193 and 18146202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215985 + ... + 216068.

It is an arithmetic number, because the mean of its divisors is an integer number (2592324).

Almost surely, 2^18146226 is an apocalyptic number.

18146226 is an abundant number, since it is smaller than the sum of its proper divisors (23330958).

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

18146226 is a wasteful number, since it uses less digits than its factorization.

18146226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432065.

The product of its digits is 4608, while the sum is 30.

The square root of 18146226 is about 4259.8387293418. The cubic root of 18146226 is about 262.7818939962.

The spelling of 18146226 in words is "eighteen million, one hundred forty-six thousand, two hundred twenty-six".