208389104 has 60 divisors (see below), whose sum is σ = 507227952. Its totient is φ = 81185280.

The previous prime is 208389079. The next prime is 208389149. The reversal of 208389104 is 401983802.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5864 + ... + 21240.

Almost surely, 2^208389104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208389104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253613976).

208389104 is an abundant number, since it is smaller than the sum of its proper divisors (298838848).

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

208389104 is a wasteful number, since it uses less digits than its factorization.

208389104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15414 (or 15397 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 208389104 is about 14435.6885530272. The cubic root of 208389104 is about 592.8684447783.

The spelling of 208389104 in words is "two hundred eight million, three hundred eighty-nine thousand, one hundred four".