129746368 has 28 divisors (see below), whose sum is σ = 257939032. Its totient is φ = 64753920.

The previous prime is 129746339. The next prime is 129746387. The reversal of 129746368 is 863647921.

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, 40771 + ... + 43837.

Almost surely, 2^129746368 is an apocalyptic number.

It is an amenable number.

129746368 is a deficient number, since it is larger than the sum of its proper divisors (128192664).

129746368 is an equidigital number, since it uses as much as digits as its factorization.

129746368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740 (or 3730 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 129746368 is about 11390.6263216734. The cubic root of 129746368 is about 506.2500391607.

The spelling of 129746368 in words is "one hundred twenty-nine million, seven hundred forty-six thousand, three hundred sixty-eight".