208320228 has 48 divisors (see below), whose sum is σ = 541215360. Its totient is φ = 69295392.

The previous prime is 208320187. The next prime is 208320247. The reversal of 208320228 is 822023802.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58425 + ... + 61887.

It is an arithmetic number, because the mean of its divisors is an integer number (11275320).

Almost surely, 2^208320228 is an apocalyptic number.

It is an amenable number.

208320228 is an abundant number, since it is smaller than the sum of its proper divisors (332895132).

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

208320228 is a wasteful number, since it uses less digits than its factorization.

208320228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4033 (or 4025 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 208320228 is about 14433.3027405372. The cubic root of 208320228 is about 592.8031200150.

The spelling of 208320228 in words is "two hundred eight million, three hundred twenty thousand, two hundred twenty-eight".