129930344 has 8 divisors (see below), whose sum is σ = 243619410. Its totient is φ = 64965168.

The previous prime is 129930319. The next prime is 129930349. The reversal of 129930344 is 443039921.

It can be written as a sum of positive squares in only one way, i.e., 122367844 + 7562500 = 11062^2 + 2750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (129930349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8120639 + ... + 8120654.

Almost surely, 2^129930344 is an apocalyptic number.

It is an amenable number.

129930344 is a deficient number, since it is larger than the sum of its proper divisors (113689066).

129930344 is a wasteful number, since it uses less digits than its factorization.

129930344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16241299 (or 16241295 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 129930344 is about 11398.6992240343. The cubic root of 129930344 is about 506.4892080129.

The spelling of 129930344 in words is "one hundred twenty-nine million, nine hundred thirty thousand, three hundred forty-four".