208320880 has 20 divisors (see below), whose sum is σ = 484346232. Its totient is φ = 83328320.

The previous prime is 208320869. The next prime is 208320901. The reversal of 208320880 is 88023802.

208320880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301926 + ... + 1302085.

Almost surely, 2^208320880 is an apocalyptic number.

208320880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208320880 is an abundant number, since it is smaller than the sum of its proper divisors (276025352).

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

208320880 is a wasteful number, since it uses less digits than its factorization.

208320880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604024 (or 2604018 counting only the distinct ones).

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

The square root of 208320880 is about 14433.3253271725. The cubic root of 208320880 is about 592.8037384655.

The spelling of 208320880 in words is "two hundred eight million, three hundred twenty thousand, eight hundred eighty".