129949360 has 160 divisors (see below), whose sum is σ = 347120640. Its totient is φ = 44937216.

The previous prime is 129949331. The next prime is 129949363. The reversal of 129949360 is 63949921.

It is not an unprimeable number, because it can be changed into a prime (129949363) 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, 1214427 + ... + 1214533.

It is an arithmetic number, because the mean of its divisors is an integer number (2169504).

Almost surely, 2^129949360 is an apocalyptic number.

129949360 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 129949360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173560320).

129949360 is an abundant number, since it is smaller than the sum of its proper divisors (217171280).

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

129949360 is a wasteful number, since it uses less digits than its factorization.

129949360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 129949360 is about 11399.5333237813. The cubic root of 129949360 is about 506.5139159414.

The spelling of 129949360 in words is "one hundred twenty-nine million, nine hundred forty-nine thousand, three hundred sixty".