208928228 has 24 divisors (see below), whose sum is σ = 390401088. Its totient is φ = 97596576.

The previous prime is 208928227. The next prime is 208928327. The reversal of 208928228 is 822829802.

It is not an unprimeable number, because it can be changed into a prime (208928227) 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, 22451 + ... + 30362.

It is an arithmetic number, because the mean of its divisors is an integer number (16266712).

Almost surely, 2^208928228 is an apocalyptic number.

It is an amenable number.

208928228 is a deficient number, since it is larger than the sum of its proper divisors (181472860).

208928228 is a wasteful number, since it uses less digits than its factorization.

208928228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52883 (or 52881 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 208928228 is about 14454.3497951309. The cubic root of 208928228 is about 593.3792750130.

The spelling of 208928228 in words is "two hundred eight million, nine hundred twenty-eight thousand, two hundred twenty-eight".