208029808 has 40 divisors (see below), whose sum is σ = 461795840. Its totient is φ = 88931520.

The previous prime is 208029781. The next prime is 208029839. The reversal of 208029808 is 808920802.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47053 + ... + 51283.

It is an arithmetic number, because the mean of its divisors is an integer number (11544896).

Almost surely, 2^208029808 is an apocalyptic number.

208029808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

208029808 is an abundant number, since it is smaller than the sum of its proper divisors (253766032).

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

208029808 is a wasteful number, since it uses less digits than its factorization.

208029808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4685 (or 4679 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 208029808 is about 14423.2384713004. The cubic root of 208029808 is about 592.5275155612.

The spelling of 208029808 in words is "two hundred eight million, twenty-nine thousand, eight hundred eight".