129645344 has 24 divisors (see below), whose sum is σ = 261177840. Its totient is φ = 63314496.

The previous prime is 129645323. The next prime is 129645353. The reversal of 129645344 is 443546921.

It is a junction number, because it is equal to n+sod(n) for n = 129645298 and 129645307.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45734 + ... + 48485.

It is an arithmetic number, because the mean of its divisors is an integer number (10882410).

Almost surely, 2^129645344 is an apocalyptic number.

It is an amenable number.

129645344 is an abundant number, since it is smaller than the sum of its proper divisors (131532496).

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

129645344 is an equidigital number, since it uses as much as digits as its factorization.

129645344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94272 (or 94264 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 129645344 is about 11386.1909346366. The cubic root of 129645344 is about 506.1186117603.

The spelling of 129645344 in words is "one hundred twenty-nine million, six hundred forty-five thousand, three hundred forty-four".