16808900 has 18 divisors (see below), whose sum is σ = 36475530. Its totient is φ = 6723520.

The previous prime is 16808881. The next prime is 16808921. The reversal of 16808900 is 980861.

It can be written as a sum of positive squares in 3 ways, for example, as 31684 + 16777216 = 178^2 + 4096^2 .

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83945 + ... + 84144.

Almost surely, 2^16808900 is an apocalyptic number.

16808900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16808900 is an abundant number, since it is smaller than the sum of its proper divisors (19666630).

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

16808900 is a wasteful number, since it uses less digits than its factorization.

16808900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168103 (or 168096 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 16808900 is about 4099.8658514639. The cubic root of 16808900 is about 256.1610518172.

The spelling of 16808900 in words is "sixteen million, eight hundred eight thousand, nine hundred".