129466480 has 80 divisors (see below), whose sum is σ = 353664864. Its totient is φ = 43453440.

The previous prime is 129466433. The next prime is 129466483. The reversal of 129466480 is 84664921.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129466483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5782 + ... + 17098.

Almost surely, 2^129466480 is an apocalyptic number.

129466480 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 129466480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176832432).

129466480 is an abundant number, since it is smaller than the sum of its proper divisors (224198384).

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

129466480 is a wasteful number, since it uses less digits than its factorization.

129466480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11354 (or 11348 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 129466480 is about 11378.3337971779. Note that the first 3 decimals coincide. The cubic root of 129466480 is about 505.8857506850.

The spelling of 129466480 in words is "one hundred twenty-nine million, four hundred sixty-six thousand, four hundred eighty".