388316944 has 40 divisors (see below), whose sum is σ = 760498200. Its totient is φ = 192073728.

The previous prime is 388316921. The next prime is 388316947. The reversal of 388316944 is 449613883.

It can be written as a sum of positive squares in 4 ways, for example, as 195440400 + 192876544 = 13980^2 + 13888^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 388316894 and 388316903.

It is not an unprimeable number, because it can be changed into a prime (388316947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099872 + ... + 1100224.

It is an arithmetic number, because the mean of its divisors is an integer number (19012455).

Almost surely, 2^388316944 is an apocalyptic number.

It is an amenable number.

388316944 is a deficient number, since it is larger than the sum of its proper divisors (372181256).

388316944 is a wasteful number, since it uses less digits than its factorization.

388316944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907 (or 901 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 388316944 is about 19705.7591581751. The cubic root of 388316944 is about 729.5618462819.

The spelling of 388316944 in words is "three hundred eighty-eight million, three hundred sixteen thousand, nine hundred forty-four".