129264338 has 8 divisors (see below), whose sum is σ = 221596032. Its totient is φ = 55398996.

The previous prime is 129264337. The next prime is 129264341. The reversal of 129264338 is 833462921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (129264337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616570 + ... + 4616597.

It is an arithmetic number, because the mean of its divisors is an integer number (27699504).

Almost surely, 2^129264338 is an apocalyptic number.

129264338 is a deficient number, since it is larger than the sum of its proper divisors (92331694).

129264338 is an equidigital number, since it uses as much as digits as its factorization.

129264338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9233176.

The product of its digits is 62208, while the sum is 38.

The square root of 129264338 is about 11369.4475679340. The cubic root of 129264338 is about 505.6223259357.

The spelling of 129264338 in words is "one hundred twenty-nine million, two hundred sixty-four thousand, three hundred thirty-eight".