18382146 has 16 divisors (see below), whose sum is σ = 36828000. Its totient is φ = 6116768.

The previous prime is 18382141. The next prime is 18382157. The reversal of 18382146 is 64128381.

It is not an unprimeable number, because it can be changed into a prime (18382141) 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 7 ways as a sum of consecutive naturals, for example, 1630 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (2301750).

Almost surely, 2^18382146 is an apocalyptic number.

18382146 is an abundant number, since it is smaller than the sum of its proper divisors (18445854).

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

18382146 is a wasteful number, since it uses less digits than its factorization.

18382146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313.

The product of its digits is 9216, while the sum is 33.

The square root of 18382146 is about 4287.4404952139. The cubic root of 18382146 is about 263.9158076342.

It can be divided in two parts, 18382 and 146, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18382146 in words is "eighteen million, three hundred eighty-two thousand, one hundred forty-six".