129830316 has 96 divisors (see below), whose sum is σ = 383201280. Its totient is φ = 33230400.

The previous prime is 129830291. The next prime is 129830317. The reversal of 129830316 is 613038921.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (129830317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64615 + ... + 66593.

It is an arithmetic number, because the mean of its divisors is an integer number (3991680).

Almost surely, 2^129830316 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 129830316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191600640).

129830316 is an abundant number, since it is smaller than the sum of its proper divisors (253370964).

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

129830316 is a wasteful number, since it uses less digits than its factorization.

129830316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075 (or 2073 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 129830316 is about 11394.3106856010. The cubic root of 129830316 is about 506.3591996108.

The spelling of 129830316 in words is "one hundred twenty-nine million, eight hundred thirty thousand, three hundred sixteen".