30129716 has 12 divisors (see below), whose sum is σ = 52838688. Its totient is φ = 15032952.

The previous prime is 30129709. The next prime is 30129719. The reversal of 30129716 is 61792103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30129719) 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, 5786 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (4403224).

Almost surely, 2^30129716 is an apocalyptic number.

It is an amenable number.

30129716 is a deficient number, since it is larger than the sum of its proper divisors (22708972).

30129716 is a wasteful number, since it uses less digits than its factorization.

30129716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15958 (or 15956 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 30129716 is about 5489.0541990401. The cubic root of 30129716 is about 311.1704486404.

The spelling of 30129716 in words is "thirty million, one hundred twenty-nine thousand, seven hundred sixteen".