129746404 has 24 divisors (see below), whose sum is σ = 240186240. Its totient is φ = 61199424.

The previous prime is 129746389. The next prime is 129746429. The reversal of 129746404 is 404647921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2944 + ... + 16375.

It is an arithmetic number, because the mean of its divisors is an integer number (10007760).

Almost surely, 2^129746404 is an apocalyptic number.

It is an amenable number.

129746404 is a deficient number, since it is larger than the sum of its proper divisors (110439836).

129746404 is a wasteful number, since it uses less digits than its factorization.

129746404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19419 (or 19417 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 129746404 is about 11390.6279019201. The cubic root of 129746404 is about 506.2500859828.

The spelling of 129746404 in words is "one hundred twenty-nine million, seven hundred forty-six thousand, four hundred four".