129884044 has 12 divisors (see below), whose sum is σ = 230036184. Its totient is φ = 64159424.

The previous prime is 129883993. The next prime is 129884087. The reversal of 129884044 is 440488921.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 129883988 and 129884006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195277 + ... + 195940.

It is an arithmetic number, because the mean of its divisors is an integer number (19169682).

Almost surely, 2^129884044 is an apocalyptic number.

It is an amenable number.

129884044 is a deficient number, since it is larger than the sum of its proper divisors (100152140).

129884044 is a wasteful number, since it uses less digits than its factorization.

129884044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391304 (or 391302 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 129884044 is about 11396.6681095836. The cubic root of 129884044 is about 506.4290392700.

The spelling of 129884044 in words is "one hundred twenty-nine million, eight hundred eighty-four thousand, forty-four".