129429306 has 16 divisors (see below), whose sum is σ = 287620800. Its totient is φ = 43143084.

The previous prime is 129429301. The next prime is 129429319. The reversal of 129429306 is 603924921.

It is not an unprimeable number, because it can be changed into a prime (129429301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198366 + ... + 1198473.

It is an arithmetic number, because the mean of its divisors is an integer number (17976300).

Almost surely, 2^129429306 is an apocalyptic number.

129429306 is an abundant number, since it is smaller than the sum of its proper divisors (158191494).

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

129429306 is a wasteful number, since it uses less digits than its factorization.

129429306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396850 (or 2396844 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 129429306 is about 11376.7001366829. The cubic root of 129429306 is about 505.8373273477.

The spelling of 129429306 in words is "one hundred twenty-nine million, four hundred twenty-nine thousand, three hundred six".