129302880 has 192 divisors, whose sum is σ = 481904640. Its totient is φ = 28514304.

The previous prime is 129302869. The next prime is 129302897. The reversal of 129302880 is 88203921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96777 + ... + 98103.

It is an arithmetic number, because the mean of its divisors is an integer number (2509920).

Almost surely, 2^129302880 is an apocalyptic number.

129302880 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 129302880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240952320).

129302880 is an abundant number, since it is smaller than the sum of its proper divisors (352601760).

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

129302880 is a wasteful number, since it uses less digits than its factorization.

129302880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381 (or 1373 counting only the distinct ones).

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

The square root of 129302880 is about 11371.1424228175. The cubic root of 129302880 is about 505.6725737702.

The spelling of 129302880 in words is "one hundred twenty-nine million, three hundred two thousand, eight hundred eighty".