180808 has 16 divisors (see below), whose sum is σ = 343980. Its totient is φ = 89088.

The previous prime is 180799. The next prime is 180811. The reversal of 180808 is 808081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 174724 + 6084 = 418^2 + 78^2 .

It is a plaindrome in base 15.

It is a nialpdrome in base 8 and base 12.

It is an unprimeable number.

180808 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660 + ... + 892.

2¹⁸⁰⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

180808 is a deficient number, since it is larger than the sum of its proper divisors (163172).

180808 is a wasteful number, since it uses less digits than its factorization.

180808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 332 counting only the distinct ones).

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

The square root of 180808 is about 425.2152396140. The cubic root of 180808 is about 56.5465197574.

Adding to 180808 its reverse (808081), we get a palindrome (988889).

The spelling of 180808 in words is "one hundred eighty thousand, eight hundred eight".