208236928 has 32 divisors (see below), whose sum is σ = 415505160. Its totient is φ = 103953408.

The previous prime is 208236913. The next prime is 208236929. The reversal of 208236928 is 829632802.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208236929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139675 + ... + 141157.

Almost surely, 2^208236928 is an apocalyptic number.

It is an amenable number.

208236928 is a deficient number, since it is larger than the sum of its proper divisors (207268232).

208236928 is a wasteful number, since it uses less digits than its factorization.

208236928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594 (or 2582 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 208236928 is about 14430.4167645983. The cubic root of 208236928 is about 592.7240957108.

The spelling of 208236928 in words is "two hundred eight million, two hundred thirty-six thousand, nine hundred twenty-eight".