208420168 has 32 divisors (see below), whose sum is σ = 434367360. Its totient is φ = 92946880.

The previous prime is 208420141. The next prime is 208420211. The reversal of 208420168 is 861024802.

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 7 ways as a sum of consecutive naturals, for example, 17680 + ... + 27007.

It is an arithmetic number, because the mean of its divisors is an integer number (13573980).

Almost surely, 2^208420168 is an apocalyptic number.

It is an amenable number.

208420168 is an abundant number, since it is smaller than the sum of its proper divisors (225947192).

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

208420168 is a wasteful number, since it uses less digits than its factorization.

208420168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44757 (or 44753 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 208420168 is about 14436.7644574538. The cubic root of 208420168 is about 592.8979024130.

The spelling of 208420168 in words is "two hundred eight million, four hundred twenty thousand, one hundred sixty-eight".