388616355 has 12 divisors (see below), whose sum is σ = 673601760. Its totient is φ = 207262032.

The previous prime is 388616353. The next prime is 388616359. The reversal of 388616355 is 553616883.

388616355 is a `hidden beast` number, since 3 + 8 + 8 + 6 + 1 + 635 + 5 = 666.

It is not a de Polignac number, because 388616355 - 2¹ = 388616353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8635919 = 388616355 / (3 + 8 + 8 + 6 + 1 + 6 + 3 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 388616355.

It is not an unprimeable number, because it can be changed into a prime (388616353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4317915 + ... + 4318004.

It is an arithmetic number, because the mean of its divisors is an integer number (56133480).

Almost surely, 2^388616355 is an apocalyptic number.

388616355 is a deficient number, since it is larger than the sum of its proper divisors (284985405).

388616355 is a wasteful number, since it uses less digits than its factorization.

388616355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8635930 (or 8635927 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 388616355 is about 19713.3547373348. The cubic root of 388616355 is about 729.7493071752.

The spelling of 388616355 in words is "three hundred eighty-eight million, six hundred sixteen thousand, three hundred fifty-five".