129342808 has 16 divisors (see below), whose sum is σ = 277163280. Its totient is φ = 55432608.

The previous prime is 129342797. The next prime is 129342827. The reversal of 129342808 is 808243921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154791 + ... + 1154902.

It is an arithmetic number, because the mean of its divisors is an integer number (17322705).

Almost surely, 2^129342808 is an apocalyptic number.

It is an amenable number.

129342808 is an abundant number, since it is smaller than the sum of its proper divisors (147820472).

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

129342808 is a wasteful number, since it uses less digits than its factorization.

129342808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309706 (or 2309702 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 129342808 is about 11372.8979596231. The cubic root of 129342808 is about 505.7246180264.

The spelling of 129342808 in words is "one hundred twenty-nine million, three hundred forty-two thousand, eight hundred eight".