208400486 has 16 divisors (see below), whose sum is σ = 357868800. Its totient is φ = 89161800.

The previous prime is 208400459. The next prime is 208400509. The reversal of 208400486 is 684004802.

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, 4040 + ... + 20811.

It is an arithmetic number, because the mean of its divisors is an integer number (22366800).

Almost surely, 2^208400486 is an apocalyptic number.

208400486 is a deficient number, since it is larger than the sum of its proper divisors (149468314).

208400486 is a wasteful number, since it uses less digits than its factorization.

208400486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25459.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 208400486 is about 14436.0827789259. The cubic root of 208400486 is about 592.8792385381.

The spelling of 208400486 in words is "two hundred eight million, four hundred thousand, four hundred eighty-six".