388105738 has 16 divisors (see below), whose sum is σ = 592764480. Its totient is φ = 190540000.

The previous prime is 388105721. The next prime is 388105747. The reversal of 388105738 is 837501883.

It is a junction number, because it is equal to n+sod(n) for n = 388105694 and 388105703.

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, 30198 + ... + 41086.

It is an arithmetic number, because the mean of its divisors is an integer number (37047780).

Almost surely, 2^388105738 is an apocalyptic number.

388105738 is a deficient number, since it is larger than the sum of its proper divisors (204658742).

388105738 is a wasteful number, since it uses less digits than its factorization.

388105738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 388105738 is about 19700.3994375749. The cubic root of 388105738 is about 729.4295524719.

The spelling of 388105738 in words is "three hundred eighty-eight million, one hundred five thousand, seven hundred thirty-eight".