18045036 has 36 divisors (see below), whose sum is σ = 46678632. Its totient is φ = 5874624.

The previous prime is 18045031. The next prime is 18045037. The reversal of 18045036 is 63054081.

18045036 is a `hidden beast` number, since 180 + 450 + 36 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (18045031) 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 11 ways as a sum of consecutive naturals, for example, 4281 + ... + 7376.

Almost surely, 2^18045036 is an apocalyptic number.

It is an amenable number.

18045036 is an abundant number, since it is smaller than the sum of its proper divisors (28633596).

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

18045036 is a wasteful number, since it uses less digits than its factorization.

18045036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710 (or 11705 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 18045036 is about 4247.9449148971. The cubic root of 18045036 is about 262.2925272189.

The spelling of 18045036 in words is "eighteen million, forty-five thousand, thirty-six".