129328008 has 32 divisors (see below), whose sum is σ = 323599200. Its totient is φ = 43072128.

The previous prime is 129327971. The next prime is 129328013. The reversal of 129328008 is 800823921.

It is a self number, because there is not a number n which added to its sum of digits gives 129328008.

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, 51060 + ... + 53532.

It is an arithmetic number, because the mean of its divisors is an integer number (10112475).

Almost surely, 2^129328008 is an apocalyptic number.

It is an amenable number.

129328008 is an abundant number, since it is smaller than the sum of its proper divisors (194271192).

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

129328008 is a wasteful number, since it uses less digits than its factorization.

129328008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4661 (or 4657 counting only the distinct ones).

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

The square root of 129328008 is about 11372.2472713180. The cubic root of 129328008 is about 505.7053281770.

The spelling of 129328008 in words is "one hundred twenty-nine million, three hundred twenty-eight thousand, eight".