129340760 has 32 divisors (see below), whose sum is σ = 308136960. Its totient is φ = 48692736.

The previous prime is 129340721. The next prime is 129340769. The reversal of 129340760 is 67043921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129340769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94424 + ... + 95783.

It is an arithmetic number, because the mean of its divisors is an integer number (9629280).

Almost surely, 2^129340760 is an apocalyptic number.

129340760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

129340760 is an abundant number, since it is smaller than the sum of its proper divisors (178796200).

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

129340760 is a wasteful number, since it uses less digits than its factorization.

129340760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190235 (or 190231 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 129340760 is about 11372.8079206500. The cubic root of 129340760 is about 505.7219488160.

The spelling of 129340760 in words is "one hundred twenty-nine million, three hundred forty thousand, seven hundred sixty".