18494226 has 24 divisors (see below), whose sum is σ = 40556880. Its totient is φ = 6089976.

The previous prime is 18494221. The next prime is 18494233. The reversal of 18494226 is 62249481.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18494221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4696 + ... + 7683.

It is an arithmetic number, because the mean of its divisors is an integer number (1689870).

Almost surely, 2^18494226 is an apocalyptic number.

18494226 is an abundant number, since it is smaller than the sum of its proper divisors (22062654).

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

18494226 is a wasteful number, since it uses less digits than its factorization.

18494226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12470 (or 12467 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 18494226 is about 4300.4913672742. The cubic root of 18494226 is about 264.4511054640.

The spelling of 18494226 in words is "eighteen million, four hundred ninety-four thousand, two hundred twenty-six".