208393880 has 32 divisors (see below), whose sum is σ = 477738000. Its totient is φ = 81783936.

The previous prime is 208393831. The next prime is 208393891. The reversal of 208393880 is 88393802.

It is a congruent number.

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, 47030 + ... + 51269.

Almost surely, 2^208393880 is an apocalyptic number.

208393880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208393880 is an abundant number, since it is smaller than the sum of its proper divisors (269344120).

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

208393880 is a wasteful number, since it uses less digits than its factorization.

208393880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98363 (or 98359 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 208393880 is about 14435.8539754321. The cubic root of 208393880 is about 592.8729739947.

The spelling of 208393880 in words is "two hundred eight million, three hundred ninety-three thousand, eight hundred eighty".