129384460 has 24 divisors (see below), whose sum is σ = 272156976. Its totient is φ = 51668160.

The previous prime is 129384443. The next prime is 129384473. The reversal of 129384460 is 64483921.

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 7 ways as a sum of consecutive naturals, for example, 7830 + ... + 17890.

It is an arithmetic number, because the mean of its divisors is an integer number (11339874).

Almost surely, 2^129384460 is an apocalyptic number.

129384460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129384460 is an abundant number, since it is smaller than the sum of its proper divisors (142772516).

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

129384460 is a wasteful number, since it uses less digits than its factorization.

129384460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10713 (or 10711 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 129384460 is about 11374.7290077610. The cubic root of 129384460 is about 505.7788980218.

The spelling of 129384460 in words is "one hundred twenty-nine million, three hundred eighty-four thousand, four hundred sixty".