208189696 has 144 divisors (see below), whose sum is σ = 502725888. Its totient is φ = 85493760.

The previous prime is 208189651. The next prime is 208189699. The reversal of 208189696 is 696981802.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (208189699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4429545 + ... + 4429591.

It is an arithmetic number, because the mean of its divisors is an integer number (3491152).

Almost surely, 2^208189696 is an apocalyptic number.

208189696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208189696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251362944).

208189696 is an abundant number, since it is smaller than the sum of its proper divisors (294536192).

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

208189696 is an equidigital number, since it uses as much as digits as its factorization.

208189696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 208189696 is about 14428.7801286179. The cubic root of 208189696 is about 592.6792787138.

The spelling of 208189696 in words is "two hundred eight million, one hundred eighty-nine thousand, six hundred ninety-six".