129790080 has 512 divisors, whose sum is σ = 558144000. Its totient is φ = 27869184.

The previous prime is 129790061. The next prime is 129790091. The reversal of 129790080 is 80097921.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3507822 + ... + 3507858.

It is an arithmetic number, because the mean of its divisors is an integer number (1090125).

Almost surely, 2^129790080 is an apocalyptic number.

129790080 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 129790080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279072000).

129790080 is an abundant number, since it is smaller than the sum of its proper divisors (428353920).

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

129790080 is a wasteful number, since it uses less digits than its factorization.

129790080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 129790080 is about 11392.5449307870. The cubic root of 129790080 is about 506.3068852402.

The spelling of 129790080 in words is "one hundred twenty-nine million, seven hundred ninety thousand, eighty".