388880385 has 16 divisors (see below), whose sum is σ = 625162560. Its totient is φ = 206418240.

The previous prime is 388880383. The next prime is 388880411. The reversal of 388880385 is 583088883.

It is not a de Polignac number, because 388880385 - 2¹ = 388880383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (388880383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58270 + ... + 64599.

It is an arithmetic number, because the mean of its divisors is an integer number (39072660).

Almost surely, 2^388880385 is an apocalyptic number.

It is an amenable number.

388880385 is a deficient number, since it is larger than the sum of its proper divisors (236282175).

388880385 is a wasteful number, since it uses less digits than its factorization.

388880385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123088.

The product of its (nonzero) digits is 1474560, while the sum is 51.

The square root of 388880385 is about 19720.0503295504. The cubic root of 388880385 is about 729.9145361886.

The spelling of 388880385 in words is "three hundred eighty-eight million, eight hundred eighty thousand, three hundred eighty-five".