18182368 has 24 divisors (see below), whose sum is σ = 36953280. Its totient is φ = 8797440.

The previous prime is 18182309. The next prime is 18182369. The reversal of 18182368 is 86328181.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18182369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8173 + ... + 10156.

It is an arithmetic number, because the mean of its divisors is an integer number (1539720).

Almost surely, 2^18182368 is an apocalyptic number.

It is an amenable number.

18182368 is an abundant number, since it is smaller than the sum of its proper divisors (18770912).

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

18182368 is a wasteful number, since it uses less digits than its factorization.

18182368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18370 (or 18362 counting only the distinct ones).

The product of its digits is 18432, while the sum is 37.

The square root of 18182368 is about 4264.0787985214. The cubic root of 18182368 is about 262.9562399784.

It can be divided in two parts, 1818 and 2368, that added together give a triangular number (4186 = T₉₁).

The spelling of 18182368 in words is "eighteen million, one hundred eighty-two thousand, three hundred sixty-eight".