388580868 has 48 divisors (see below), whose sum is σ = 1084930560. Its totient is φ = 119562912.

The previous prime is 388580861. The next prime is 388580869. The reversal of 388580868 is 868085883.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (388580861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136980 + ... + 139787.

It is an arithmetic number, because the mean of its divisors is an integer number (22602720).

Almost surely, 2^388580868 is an apocalyptic number.

It is an amenable number.

388580868 is an abundant number, since it is smaller than the sum of its proper divisors (696349692).

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

388580868 is a wasteful number, since it uses less digits than its factorization.

388580868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276793 (or 276785 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 54.

The square root of 388580868 is about 19712.4546416726. The cubic root of 388580868 is about 729.7270938350.

The spelling of 388580868 in words is "three hundred eighty-eight million, five hundred eighty thousand, eight hundred sixty-eight".