388343385 has 48 divisors (see below), whose sum is σ = 714025728. Its totient is φ = 194832000.

The previous prime is 388343383. The next prime is 388343399. The reversal of 388343385 is 583343883.

It is not a de Polignac number, because 388343385 - 2¹ = 388343383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 388343385.

It is not an unprimeable number, because it can be changed into a prime (388343383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60060 + ... + 66210.

It is an arithmetic number, because the mean of its divisors is an integer number (14875536).

Almost surely, 2^388343385 is an apocalyptic number.

It is an amenable number.

388343385 is a deficient number, since it is larger than the sum of its proper divisors (325682343).

388343385 is a wasteful number, since it uses less digits than its factorization.

388343385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246 (or 6243 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 388343385 is about 19706.4300419939. The cubic root of 388343385 is about 729.5784048408.

The spelling of 388343385 in words is "three hundred eighty-eight million, three hundred forty-three thousand, three hundred eighty-five".