388105855 has 8 divisors (see below), whose sum is σ = 467816832. Its totient is φ = 309091488.

The previous prime is 388105853. The next prime is 388105859. The reversal of 388105855 is 558501883.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 388105855 - 2¹ = 388105853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388105853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172924 + ... + 175153.

It is an arithmetic number, because the mean of its divisors is an integer number (58477104).

Almost surely, 2^388105855 is an apocalyptic number.

388105855 is a deficient number, since it is larger than the sum of its proper divisors (79710977).

388105855 is a wasteful number, since it uses less digits than its factorization.

388105855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348305.

The product of its (nonzero) digits is 192000, while the sum is 43.

The square root of 388105855 is about 19700.4024070576. The cubic root of 388105855 is about 729.4296257709.

The spelling of 388105855 in words is "three hundred eighty-eight million, one hundred five thousand, eight hundred fifty-five".