18384008 has 16 divisors (see below), whose sum is σ = 34636560. Its totient is φ = 9147600.

The previous prime is 18384007. The next prime is 18384043. The reversal of 18384008 is 80048381.

It is not an unprimeable number, because it can be changed into a prime (18384007) 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, 3758 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (2164785).

Almost surely, 2^18384008 is an apocalyptic number.

It is an amenable number.

18384008 is a deficient number, since it is larger than the sum of its proper divisors (16252552).

18384008 is a wasteful number, since it uses less digits than its factorization.

18384008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108 (or 11104 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 18384008 is about 4287.6576355861. The cubic root of 18384008 is about 263.9247183574.

The spelling of 18384008 in words is "eighteen million, three hundred eighty-four thousand, eight".