129349398 has 8 divisors (see below), whose sum is σ = 258698808. Its totient is φ = 43116464.

The previous prime is 129349393. The next prime is 129349399. The reversal of 129349398 is 893943921.

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

129349398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129349393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10779111 + ... + 10779122.

It is an arithmetic number, because the mean of its divisors is an integer number (32337351).

Almost surely, 2^129349398 is an apocalyptic number.

129349398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

129349398 is a wasteful number, since it uses less digits than its factorization.

129349398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21558238.

The product of its digits is 419904, while the sum is 48.

The square root of 129349398 is about 11373.1876798020. The cubic root of 129349398 is about 505.7332067493.

The spelling of 129349398 in words is "one hundred twenty-nine million, three hundred forty-nine thousand, three hundred ninety-eight".