30443668838 has 32 divisors (see below), whose sum is σ = 50890125312. Its totient is φ = 13541288800.

The previous prime is 30443668817. The next prime is 30443668841. The reversal of 30443668838 is 83886634403.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 30443668838.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 412493 + ... + 480663.

It is an arithmetic number, because the mean of its divisors is an integer number (1590316416).

Almost surely, 2^30443668838 is an apocalyptic number.

30443668838 is a deficient number, since it is larger than the sum of its proper divisors (20446456474).

30443668838 is a wasteful number, since it uses less digits than its factorization.

30443668838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68620.

The product of its (nonzero) digits is 7962624, while the sum is 53.

The spelling of 30443668838 in words is "thirty billion, four hundred forty-three million, six hundred sixty-eight thousand, eight hundred thirty-eight".