208685422 has 8 divisors (see below), whose sum is σ = 341485272. Its totient is φ = 94857000.

The previous prime is 208685381. The next prime is 208685431. The reversal of 208685422 is 224586802.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4742829 + ... + 4742872.

It is an arithmetic number, because the mean of its divisors is an integer number (42685659).

Almost surely, 2^208685422 is an apocalyptic number.

208685422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

208685422 is a deficient number, since it is larger than the sum of its proper divisors (132799850).

208685422 is a wasteful number, since it uses less digits than its factorization.

208685422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485714.

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 208685422 is about 14445.9482900916. The cubic root of 208685422 is about 593.1493206113.

The spelling of 208685422 in words is "two hundred eight million, six hundred eighty-five thousand, four hundred twenty-two".