129835444 has 12 divisors (see below), whose sum is σ = 227304000. Its totient is φ = 64891448.

The previous prime is 129835441. The next prime is 129835451. The reversal of 129835444 is 444538921.

It is a junction number, because it is equal to n+sod(n) for n = 129835397 and 129835406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129835441) 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, 8277 + ... + 18115.

It is an arithmetic number, because the mean of its divisors is an integer number (18942000).

Almost surely, 2^129835444 is an apocalyptic number.

It is an amenable number.

129835444 is a deficient number, since it is larger than the sum of its proper divisors (97468556).

129835444 is a wasteful number, since it uses less digits than its factorization.

129835444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13142 (or 13140 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 129835444 is about 11394.5357079611. The cubic root of 129835444 is about 506.3658661991.

The spelling of 129835444 in words is "one hundred twenty-nine million, eight hundred thirty-five thousand, four hundred forty-four".