208228328 has 32 divisors (see below), whose sum is σ = 486768960. Its totient is φ = 81127680.

The previous prime is 208228309. The next prime is 208228331. The reversal of 208228328 is 823822802.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168401 + ... + 169632.

It is an arithmetic number, because the mean of its divisors is an integer number (15211530).

Almost surely, 2^208228328 is an apocalyptic number.

208228328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208228328 is an abundant number, since it is smaller than the sum of its proper divisors (278540632).

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

208228328 is a wasteful number, since it uses less digits than its factorization.

208228328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338057 (or 338053 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 208228328 is about 14430.1187798299. The cubic root of 208228328 is about 592.7159359391.

The spelling of 208228328 in words is "two hundred eight million, two hundred twenty-eight thousand, three hundred twenty-eight".