129310398 has 64 divisors (see below), whose sum is σ = 347742720. Its totient is φ = 34770816.

The previous prime is 129310387. The next prime is 129310411. The reversal of 129310398 is 893013921.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3636 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (5433480).

Almost surely, 2^129310398 is an apocalyptic number.

129310398 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

129310398 is an abundant number, since it is smaller than the sum of its proper divisors (218432322).

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

129310398 is a wasteful number, since it uses less digits than its factorization.

129310398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20158 (or 20152 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 129310398 is about 11371.4729916577. The cubic root of 129310398 is about 505.6823739456.

The spelling of 129310398 in words is "one hundred twenty-nine million, three hundred ten thousand, three hundred ninety-eight".