18530368 has 28 divisors (see below), whose sum is σ = 37053520. Its totient is φ = 9194112.

The previous prime is 18530363. The next prime is 18530371. The reversal of 18530368 is 86303581.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18530363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7855 + ... + 9937.

It is an arithmetic number, because the mean of its divisors is an integer number (1323340).

Almost surely, 2^18530368 is an apocalyptic number.

It is an amenable number.

18530368 is a deficient number, since it is larger than the sum of its proper divisors (18523152).

18530368 is a wasteful number, since it uses less digits than its factorization.

18530368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234 (or 2224 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 18530368 is about 4304.6913942814. The cubic root of 18530368 is about 264.6232596012.

The spelling of 18530368 in words is "eighteen million, five hundred thirty thousand, three hundred sixty-eight".