129589424 has 40 divisors (see below), whose sum is σ = 272839680. Its totient is φ = 59400000.

The previous prime is 129589409. The next prime is 129589441. The reversal of 129589424 is 424985921.

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, 2549 + ... + 16299.

It is an arithmetic number, because the mean of its divisors is an integer number (6820992).

Almost surely, 2^129589424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129589424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136419840).

129589424 is an abundant number, since it is smaller than the sum of its proper divisors (143250256).

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

129589424 is a wasteful number, since it uses less digits than its factorization.

129589424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13809 (or 13803 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 129589424 is about 11383.7350636775. The cubic root of 129589424 is about 506.0458331525.

The spelling of 129589424 in words is "one hundred twenty-nine million, five hundred eighty-nine thousand, four hundred twenty-four".