30138882 has 24 divisors (see below), whose sum is σ = 62296848. Its totient is φ = 9720360.

The previous prime is 30138839. The next prime is 30138887. The reversal of 30138882 is 28883103.

It is not an unprimeable number, because it can be changed into a prime (30138887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3153 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (2595702).

Almost surely, 2^30138882 is an apocalyptic number.

30138882 is an abundant number, since it is smaller than the sum of its proper divisors (32157966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30138882 is a wasteful number, since it uses less digits than its factorization.

30138882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5294 (or 5263 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 30138882 is about 5489.8890699175. The cubic root of 30138882 is about 311.2019999849.

The spelling of 30138882 in words is "thirty million, one hundred thirty-eight thousand, eight hundred eighty-two".