180018104 has 64 divisors (see below), whose sum is σ = 396887040. Its totient is φ = 74954880.

The previous prime is 180018031. The next prime is 180018107. The reversal of 180018104 is 401810081.

It is a self number, because there is not a number n which added to its sum of digits gives 180018104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180018107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388577 + ... + 389039.

It is an arithmetic number, because the mean of its divisors is an integer number (6201360).

Almost surely, 2^180018104 is an apocalyptic number.

180018104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180018104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198443520).

180018104 is an abundant number, since it is smaller than the sum of its proper divisors (216868936).

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

180018104 is a wasteful number, since it uses less digits than its factorization.

180018104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 180018104 is about 13417.0825442791. The cubic root of 180018104 is about 564.6405461565.

Adding to 180018104 its reverse (401810081), we get a palindrome (581828185).

The spelling of 180018104 in words is "one hundred eighty million, eighteen thousand, one hundred four".