388668548 has 6 divisors (see below), whose sum is σ = 680169966. Its totient is φ = 194334272.

The previous prime is 388668523. The next prime is 388668551. The reversal of 388668548 is 845866883.

It can be written as a sum of positive squares in only one way, i.e., 380328004 + 8340544 = 19502^2 + 2888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 388668493 and 388668502.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 48583565 + ... + 48583572.

It is an arithmetic number, because the mean of its divisors is an integer number (113361661).

Almost surely, 2^388668548 is an apocalyptic number.

It is an amenable number.

388668548 is a deficient number, since it is larger than the sum of its proper divisors (291501418).

388668548 is a wasteful number, since it uses less digits than its factorization.

388668548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97167141 (or 97167139 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 56.

The square root of 388668548 is about 19714.6784909113. The cubic root of 388668548 is about 729.7819752982.

The spelling of 388668548 in words is "three hundred eighty-eight million, six hundred sixty-eight thousand, five hundred forty-eight".