129349968 has 60 divisors (see below), whose sum is σ = 367309824. Its totient is φ = 39195200.

The previous prime is 129349937. The next prime is 129350009. The reversal of 129349968 is 869943921.

It is a self number, because there is not a number n which added to its sum of digits gives 129349968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5328 + ... + 16943.

Almost surely, 2^129349968 is an apocalyptic number.

It is an amenable number.

129349968 is an abundant number, since it is smaller than the sum of its proper divisors (237959856).

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

129349968 is a wasteful number, since it uses less digits than its factorization.

129349968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304 (or 22287 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 129349968 is about 11373.2127387120. The cubic root of 129349968 is about 505.7339496145.

The spelling of 129349968 in words is "one hundred twenty-nine million, three hundred forty-nine thousand, nine hundred sixty-eight".