388847936 has 112 divisors (see below), whose sum is σ = 875629440. Its totient is φ = 170311680.

The previous prime is 388847933. The next prime is 388847947. The reversal of 388847936 is 639748883.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388847933) 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 15 ways as a sum of consecutive naturals, for example, 1025795 + ... + 1026173.

It is an arithmetic number, because the mean of its divisors is an integer number (7818120).

Almost surely, 2^388847936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 388847936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437814720).

388847936 is an abundant number, since it is smaller than the sum of its proper divisors (486781504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

388847936 is a wasteful number, since it uses less digits than its factorization.

388847936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 462 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The square root of 388847936 is about 19719.2275710789. The cubic root of 388847936 is about 729.8942337541.

The spelling of 388847936 in words is "three hundred eighty-eight million, eight hundred forty-seven thousand, nine hundred thirty-six".