129417944 has 16 divisors (see below), whose sum is σ = 247237920. Its totient is φ = 63487840.

The previous prime is 129417929. The next prime is 129417961. The reversal of 129417944 is 449714921.

It is a congruent number.

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, 152192 + ... + 153039.

It is an arithmetic number, because the mean of its divisors is an integer number (15452370).

Almost surely, 2^129417944 is an apocalyptic number.

It is an amenable number.

129417944 is a deficient number, since it is larger than the sum of its proper divisors (117819976).

129417944 is a wasteful number, since it uses less digits than its factorization.

129417944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305290 (or 305286 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 129417944 is about 11376.2007717867. The cubic root of 129417944 is about 505.8225252083.

The spelling of 129417944 in words is "one hundred twenty-nine million, four hundred seventeen thousand, nine hundred forty-four".