18068044 has 36 divisors (see below), whose sum is σ = 33801768. Its totient is φ = 8444800.

The previous prime is 18068033. The next prime is 18068137. The reversal of 18068044 is 44086081.

It is a junction number, because it is equal to n+sod(n) for n = 18067997 and 18068015.

It is an unprimeable number.

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, 137859 + ... + 137989.

It is an arithmetic number, because the mean of its divisors is an integer number (938938).

Almost surely, 2^18068044 is an apocalyptic number.

It is an amenable number.

18068044 is a deficient number, since it is larger than the sum of its proper divisors (15733724).

18068044 is a wasteful number, since it uses less digits than its factorization.

18068044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 18068044 is about 4250.6521852535. The cubic root of 18068044 is about 262.4039570033.

The spelling of 18068044 in words is "eighteen million, sixty-eight thousand, forty-four".