129439604 has 48 divisors (see below), whose sum is σ = 264499200. Its totient is φ = 54284256.

The previous prime is 129439591. The next prime is 129439631. The reversal of 129439604 is 406934921.

It is a super-2 number, since 2×129439604² = 33509222167353632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360377 + ... + 360735.

It is an arithmetic number, because the mean of its divisors is an integer number (5510400).

Almost surely, 2^129439604 is an apocalyptic number.

129439604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129439604 is an abundant number, since it is smaller than the sum of its proper divisors (135059596).

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

129439604 is a wasteful number, since it uses less digits than its factorization.

129439604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 129439604 is about 11377.1527193758. The cubic root of 129439604 is about 505.8507425852.

The spelling of 129439604 in words is "one hundred twenty-nine million, four hundred thirty-nine thousand, six hundred four".