208806912 has 132 divisors (see below), whose sum is σ = 610988560. Its totient is φ = 68677632.

The previous prime is 208806887. The next prime is 208806929. The reversal of 208806912 is 219608802.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1280943 + ... + 1281105.

Almost surely, 2^208806912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208806912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305494280).

208806912 is an abundant number, since it is smaller than the sum of its proper divisors (402181648).

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

208806912 is a wasteful number, since it uses less digits than its factorization.

208806912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 208806912 is about 14450.1526635534. The cubic root of 208806912 is about 593.2644024903.

The spelling of 208806912 in words is "two hundred eight million, eight hundred six thousand, nine hundred twelve".