388169055 has 12 divisors (see below), whose sum is σ = 672826440. Its totient is φ = 207023472.

The previous prime is 388169053. The next prime is 388169057. The reversal of 388169055 is 550961883.

It is an interprime number because it is at equal distance from previous prime (388169053) and next prime (388169057).

It is not a de Polignac number, because 388169055 - 2¹ = 388169053 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: 8625979 = 388169055 / (3 + 8 + 8 + 1 + 6 + 9 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 388169055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388169051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4312945 + ... + 4313034.

It is an arithmetic number, because the mean of its divisors is an integer number (56068870).

Almost surely, 2^388169055 is an apocalyptic number.

388169055 is a deficient number, since it is larger than the sum of its proper divisors (284657385).

388169055 is a wasteful number, since it uses less digits than its factorization.

388169055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8625990 (or 8625987 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 388169055 is about 19702.0063699107. The cubic root of 388169055 is about 729.4692175899.

The spelling of 388169055 in words is "three hundred eighty-eight million, one hundred sixty-nine thousand, fifty-five".