129419430 has 64 divisors (see below), whose sum is σ = 360834048. Its totient is φ = 29093760.

The previous prime is 129419401. The next prime is 129419443. The reversal of 129419430 is 34914921.

It is a junction number, because it is equal to n+sod(n) for n = 129419391 and 129419400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7759 + ... + 17861.

It is an arithmetic number, because the mean of its divisors is an integer number (5638032).

Almost surely, 2^129419430 is an apocalyptic number.

129419430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 129419430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180417024).

129419430 is an abundant number, since it is smaller than the sum of its proper divisors (231414618).

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

129419430 is a wasteful number, since it uses less digits than its factorization.

129419430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 129419430 is about 11376.2660833861. The cubic root of 129419430 is about 505.8244611825.

The spelling of 129419430 in words is "one hundred twenty-nine million, four hundred nineteen thousand, four hundred thirty".