30138682 has 16 divisors (see below), whose sum is σ = 52126272. Its totient is φ = 12801600.

The previous prime is 30138679. The next prime is 30138701. The reversal of 30138682 is 28683103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7944 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (3257892).

Almost surely, 2^30138682 is an apocalyptic number.

30138682 is a deficient number, since it is larger than the sum of its proper divisors (21987590).

30138682 is a wasteful number, since it uses less digits than its factorization.

30138682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19173.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 30138682 is about 5489.8708545830. The cubic root of 30138682 is about 311.2013116102.

It can be divided in two parts, 301 and 38682, that added together give a palindrome (38983).

The spelling of 30138682 in words is "thirty million, one hundred thirty-eight thousand, six hundred eighty-two".