388538852 has 24 divisors (see below), whose sum is σ = 732785592. Its totient is φ = 179193600.

The previous prime is 388538851. The next prime is 388538873. The reversal of 388538852 is 258835883.

It can be written as a sum of positive squares in 4 ways, for example, as 23193856 + 365344996 = 4816^2 + 19114^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 388538852.

It is not an unprimeable number, because it can be changed into a prime (388538851) 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 7 ways as a sum of consecutive naturals, for example, 125402 + ... + 128462.

It is an arithmetic number, because the mean of its divisors is an integer number (30532733).

Almost surely, 2^388538852 is an apocalyptic number.

It is an amenable number.

388538852 is a deficient number, since it is larger than the sum of its proper divisors (344246740).

388538852 is a wasteful number, since it uses less digits than its factorization.

388538852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519 (or 5517 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The square root of 388538852 is about 19711.3888906896. The cubic root of 388538852 is about 729.7007918721.

The spelling of 388538852 in words is "three hundred eighty-eight million, five hundred thirty-eight thousand, eight hundred fifty-two".