208051648 has 42 divisors (see below), whose sum is σ = 480264216. Its totient is φ = 89163648.

The previous prime is 208051639. The next prime is 208051687. The reversal of 208051648 is 846150802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30036 + ... + 36307.

Almost surely, 2^208051648 is an apocalyptic number.

208051648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208051648 is an abundant number, since it is smaller than the sum of its proper divisors (272212568).

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

208051648 is an equidigital number, since it uses as much as digits as its factorization.

208051648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66369 (or 66352 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 208051648 is about 14423.9955629500. The cubic root of 208051648 is about 592.5482503271.

The spelling of 208051648 in words is "two hundred eight million, fifty-one thousand, six hundred forty-eight".