208805994 has 24 divisors (see below), whose sum is σ = 452850372. Its totient is φ = 69534720.

The previous prime is 208805977. The next prime is 208805999. The reversal of 208805994 is 499508802.

It can be written as a sum of positive squares in 2 ways, for example, as 201270969 + 7535025 = 14187^2 + 2745^2 .

It is not an unprimeable number, because it can be changed into a prime (208805999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15724 + ... + 25784.

Almost surely, 2^208805994 is an apocalyptic number.

208805994 is an abundant number, since it is smaller than the sum of its proper divisors (244044378).

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

208805994 is a wasteful number, since it uses less digits than its factorization.

208805994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11222 (or 11219 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 208805994 is about 14450.1208991482. The cubic root of 208805994 is about 593.2635330786.

The spelling of 208805994 in words is "two hundred eight million, eight hundred five thousand, nine hundred ninety-four".