208091938 has 8 divisors (see below), whose sum is σ = 317428560. Its totient is φ = 102282420.

The previous prime is 208091887. The next prime is 208091941. The reversal of 208091938 is 839190802.

208091938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 208091938.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881628 + ... + 881863.

It is an arithmetic number, because the mean of its divisors is an integer number (39678570).

Almost surely, 2^208091938 is an apocalyptic number.

208091938 is a deficient number, since it is larger than the sum of its proper divisors (109336622).

208091938 is a wasteful number, since it uses less digits than its factorization.

208091938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763552.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 208091938 is about 14425.3921263860. The cubic root of 208091938 is about 592.5864976058.

The spelling of 208091938 in words is "two hundred eight million, ninety-one thousand, nine hundred thirty-eight".