18080008 has 32 divisors (see below), whose sum is σ = 34776000. Its totient is φ = 8809920.

The previous prime is 18080003. The next prime is 18080009. The reversal of 18080008 is 80008081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18080003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78838 + ... + 79066.

It is an arithmetic number, because the mean of its divisors is an integer number (1086750).

Almost surely, 2^18080008 is an apocalyptic number.

It is an amenable number.

18080008 is a deficient number, since it is larger than the sum of its proper divisors (16695992).

18080008 is a wasteful number, since it uses less digits than its factorization.

18080008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 18080008 is about 4252.0592658146. The cubic root of 18080008 is about 262.4618623354.

Adding to 18080008 its reverse (80008081), we get a palindrome (98088089).

The spelling of 18080008 in words is "eighteen million, eighty thousand, eight".