30129382 has 8 divisors (see below), whose sum is σ = 45355752. Its totient is φ = 15010800.

The previous prime is 30129367. The next prime is 30129391. The reversal of 30129382 is 28392103.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30129382.

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, 26244 + ... + 27367.

It is an arithmetic number, because the mean of its divisors is an integer number (5669469).

Almost surely, 2^30129382 is an apocalyptic number.

30129382 is a deficient number, since it is larger than the sum of its proper divisors (15226370).

30129382 is a wasteful number, since it uses less digits than its factorization.

30129382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53894.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30129382 is about 5489.0237747709. The cubic root of 30129382 is about 311.1692988197.

The spelling of 30129382 in words is "thirty million, one hundred twenty-nine thousand, three hundred eighty-two".