208289196 has 72 divisors (see below), whose sum is σ = 554770944. Its totient is φ = 65762400.

The previous prime is 208289161. The next prime is 208289203. The reversal of 208289196 is 691982802.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87421 + ... + 89771.

It is an arithmetic number, because the mean of its divisors is an integer number (7705152).

Almost surely, 2^208289196 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 208289196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277385472).

208289196 is an abundant number, since it is smaller than the sum of its proper divisors (346481748).

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

208289196 is a wasteful number, since it uses less digits than its factorization.

208289196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2491 (or 2486 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 208289196 is about 14432.2276866740. The cubic root of 208289196 is about 592.7736833154.

The spelling of 208289196 in words is "two hundred eight million, two hundred eighty-nine thousand, one hundred ninety-six".