18266234 has 32 divisors (see below), whose sum is σ = 32503680. Its totient is φ = 7535808.

The previous prime is 18266233. The next prime is 18266243. The reversal of 18266234 is 43266281.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18266234.

It is not an unprimeable number, because it can be changed into a prime (18266231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 92624 + ... + 92820.

It is an arithmetic number, because the mean of its divisors is an integer number (1015740).

Almost surely, 2^18266234 is an apocalyptic number.

18266234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18266234 is a deficient number, since it is larger than the sum of its proper divisors (14237446).

18266234 is a wasteful number, since it uses less digits than its factorization.

18266234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 13824, while the sum is 32.

The square root of 18266234 is about 4273.9014962912. The cubic root of 18266234 is about 263.3599143529.

The spelling of 18266234 in words is "eighteen million, two hundred sixty-six thousand, two hundred thirty-four".