129830342 has 8 divisors (see below), whose sum is σ = 194916456. Its totient is φ = 64858192.

The previous prime is 129830341. The next prime is 129830347. The reversal of 129830342 is 243038921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 129830299 and 129830308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129830341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25583 + ... + 30234.

It is an arithmetic number, because the mean of its divisors is an integer number (24364557).

Almost surely, 2^129830342 is an apocalyptic number.

129830342 is a deficient number, since it is larger than the sum of its proper divisors (65086114).

129830342 is a wasteful number, since it uses less digits than its factorization.

129830342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56982.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 129830342 is about 11394.3118265212. The cubic root of 129830342 is about 506.3592334122.

The spelling of 129830342 in words is "one hundred twenty-nine million, eight hundred thirty thousand, three hundred forty-two".