208481388 has 24 divisors (see below), whose sum is σ = 488481840. Its totient is φ = 69204480.

The previous prime is 208481369. The next prime is 208481389. The reversal of 208481388 is 883184802.

208481388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (208481389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33153 + ... + 38936.

It is an arithmetic number, because the mean of its divisors is an integer number (20353410).

Almost surely, 2^208481388 is an apocalyptic number.

It is an amenable number.

208481388 is an abundant number, since it is smaller than the sum of its proper divisors (280000452).

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

208481388 is a wasteful number, since it uses less digits than its factorization.

208481388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72337 (or 72335 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 42.

The square root of 208481388 is about 14438.8845829586. The cubic root of 208481388 is about 592.9559480692.

The spelling of 208481388 in words is "two hundred eight million, four hundred eighty-one thousand, three hundred eighty-eight".