129332480 has 72 divisors (see below), whose sum is σ = 313958400. Its totient is φ = 51038208.

The previous prime is 129332459. The next prime is 129332507. The reversal of 129332480 is 84233921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 100481 + ... + 101759.

Almost surely, 2^129332480 is an apocalyptic number.

129332480 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 129332480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156979200).

129332480 is an abundant number, since it is smaller than the sum of its proper divisors (184625920).

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

129332480 is an equidigital number, since it uses as much as digits as its factorization.

129332480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 129332480 is about 11372.4438886283. The cubic root of 129332480 is about 505.7111569948.

The spelling of 129332480 in words is "one hundred twenty-nine million, three hundred thirty-two thousand, four hundred eighty".