129672480 has 96 divisors (see below), whose sum is σ = 466833024. Its totient is φ = 29638656.

The previous prime is 129672467. The next prime is 129672497. The reversal of 129672480 is 84276921.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 15937 + ... + 22656.

It is an arithmetic number, because the mean of its divisors is an integer number (4862844).

Almost surely, 2^129672480 is an apocalyptic number.

129672480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129672480 is an abundant number, since it is smaller than the sum of its proper divisors (337160544).

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

129672480 is a wasteful number, since it uses less digits than its factorization.

129672480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38618 (or 38610 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 129672480 is about 11387.3824911610. The cubic root of 129672480 is about 506.1539211053.

The spelling of 129672480 in words is "one hundred twenty-nine million, six hundred seventy-two thousand, four hundred eighty".