388555108 has 12 divisors (see below), whose sum is σ = 703418940. Its totient is φ = 187578272.

The previous prime is 388555099. The next prime is 388555109. The reversal of 388555108 is 801555883.

It can be written as a sum of positive squares in 2 ways, for example, as 307230784 + 81324324 = 17528^2 + 9018^2 .

It is not an unprimeable number, because it can be changed into a prime (388555109) 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 3 ways as a sum of consecutive naturals, for example, 1674691 + ... + 1674922.

It is an arithmetic number, because the mean of its divisors is an integer number (58618245).

Almost surely, 2^388555108 is an apocalyptic number.

It is an amenable number.

388555108 is a deficient number, since it is larger than the sum of its proper divisors (314863832).

388555108 is a wasteful number, since it uses less digits than its factorization.

388555108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349646 (or 3349644 counting only the distinct ones).

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

The square root of 388555108 is about 19711.8012368226. The cubic root of 388555108 is about 729.7109683324.

The spelling of 388555108 in words is "three hundred eighty-eight million, five hundred fifty-five thousand, one hundred eight".