18382912 has 14 divisors (see below), whose sum is σ = 36478718. Its totient is φ = 9191424.

The previous prime is 18382901. The next prime is 18382919. The reversal of 18382912 is 21928381.

It can be written as a sum of positive squares in only one way, i.e., 14318656 + 4064256 = 3784^2 + 2016^2 .

It is not an unprimeable number, because it can be changed into a prime (18382919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143553 + ... + 143680.

Almost surely, 2^18382912 is an apocalyptic number.

It is an amenable number.

18382912 is a deficient number, since it is larger than the sum of its proper divisors (18095806).

18382912 is an equidigital number, since it uses as much as digits as its factorization.

18382912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287245 (or 287235 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 18382912 is about 4287.5298249692. The cubic root of 18382912 is about 263.9194734503.

The spelling of 18382912 in words is "eighteen million, three hundred eighty-two thousand, nine hundred twelve".