18000104 has 8 divisors (see below), whose sum is σ = 33750210. Its totient is φ = 9000048.

The previous prime is 18000089. The next prime is 18000137. The reversal of 18000104 is 40100081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16564900 + 1435204 = 4070^2 + 1198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124999 + ... + 1125014.

Almost surely, 2^18000104 is an apocalyptic number.

It is an amenable number.

18000104 is a deficient number, since it is larger than the sum of its proper divisors (15750106).

18000104 is a wasteful number, since it uses less digits than its factorization.

18000104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250019 (or 2250015 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 18000104 is about 4242.6529436191. The cubic root of 18000104 is about 262.0746441553.

Adding to 18000104 its reverse (40100081), we get a palindrome (58100185).

The spelling of 18000104 in words is "eighteen million, one hundred four", and thus it is an aban number.