30642342238 has 16 divisors (see below), whose sum is σ = 46036116000. Its totient is φ = 15296988672.

The previous prime is 30642342233. The next prime is 30642342271. The reversal of 30642342238 is 83224324603.

It is a junction number, because it is equal to n+sod(n) for n = 30642342197 and 30642342206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642342233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6164218 + ... + 6169186.

It is an arithmetic number, because the mean of its divisors is an integer number (2877257250).

Almost surely, 2^30642342238 is an apocalyptic number.

30642342238 is a deficient number, since it is larger than the sum of its proper divisors (15393773762).

30642342238 is a wasteful number, since it uses less digits than its factorization.

30642342238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9219.

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 30642342238 in words is "thirty billion, six hundred forty-two million, three hundred forty-two thousand, two hundred thirty-eight".