129890304 has 192 divisors, whose sum is σ = 402948000. Its totient is φ = 41803776.

The previous prime is 129890297. The next prime is 129890309. The reversal of 129890304 is 403098921.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129890309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4478962 + ... + 4478990.

Almost surely, 2^129890304 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 129890304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201474000).

129890304 is an abundant number, since it is smaller than the sum of its proper divisors (273057696).

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

129890304 is an frugal number, since it uses more digits than its factorization.

129890304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 129890304 is about 11396.9427479478. The cubic root of 129890304 is about 506.4371752318.

The spelling of 129890304 in words is "one hundred twenty-nine million, eight hundred ninety thousand, three hundred four".