208318064 has 10 divisors (see below), whose sum is σ = 403616280. Its totient is φ = 104159024.

The previous prime is 208318039. The next prime is 208318067. The reversal of 208318064 is 460813802.

208318064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 208318064.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208318067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6509924 + ... + 6509955.

It is an arithmetic number, because the mean of its divisors is an integer number (40361628).

Almost surely, 2^208318064 is an apocalyptic number.

It is an amenable number.

208318064 is a deficient number, since it is larger than the sum of its proper divisors (195298216).

208318064 is a wasteful number, since it uses less digits than its factorization.

208318064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13019887 (or 13019881 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 208318064 is about 14433.2277748257. The cubic root of 208318064 is about 592.8010673573.

The spelling of 208318064 in words is "two hundred eight million, three hundred eighteen thousand, sixty-four".