129908480 has 144 divisors (see below), whose sum is σ = 345795744. Its totient is φ = 46448640.

The previous prime is 129908477. The next prime is 129908497. The reversal of 129908480 is 84809921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615575 + ... + 615785.

Almost surely, 2^129908480 is an apocalyptic number.

129908480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129908480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172897872).

129908480 is an abundant number, since it is smaller than the sum of its proper divisors (215887264).

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

129908480 is a wasteful number, since it uses less digits than its factorization.

129908480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 129908480 is about 11397.7401268848. The cubic root of 129908480 is about 506.4607966326.

The spelling of 129908480 in words is "one hundred twenty-nine million, nine hundred eight thousand, four hundred eighty".