18382408 has 16 divisors (see below), whose sum is σ = 37600560. Its totient is φ = 8355600.

The previous prime is 18382393. The next prime is 18382409. The reversal of 18382408 is 80428381.

It is not an unprimeable number, because it can be changed into a prime (18382409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104358 + ... + 104533.

It is an arithmetic number, because the mean of its divisors is an integer number (2350035).

Almost surely, 2^18382408 is an apocalyptic number.

It is an amenable number.

18382408 is an abundant number, since it is smaller than the sum of its proper divisors (19218152).

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

18382408 is a wasteful number, since it uses less digits than its factorization.

18382408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208908 (or 208904 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18382408 is about 4287.4710494649. The cubic root of 18382408 is about 263.9170614888.

The spelling of 18382408 in words is "eighteen million, three hundred eighty-two thousand, four hundred eight".