129830208 has 112 divisors (see below), whose sum is σ = 356372160. Its totient is φ = 41693184.

The previous prime is 129830191. The next prime is 129830221. The reversal of 129830208 is 802038921.

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 15 ways as a sum of consecutive naturals, for example, 826866 + ... + 827022.

Almost surely, 2^129830208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129830208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178186080).

129830208 is an abundant number, since it is smaller than the sum of its proper divisors (226541952).

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

129830208 is a wasteful number, since it uses less digits than its factorization.

129830208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 129830208 is about 11394.3059463927. The cubic root of 129830208 is about 506.3590592050.

The spelling of 129830208 in words is "one hundred twenty-nine million, eight hundred thirty thousand, two hundred eight".