388288812 has 48 divisors (see below), whose sum is σ = 928700640. Its totient is φ = 126217728.

The previous prime is 388288811. The next prime is 388288843. The reversal of 388288812 is 218882883.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (388288811) 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, 108264 + ... + 111792.

It is an arithmetic number, because the mean of its divisors is an integer number (19347930).

Almost surely, 2^388288812 is an apocalyptic number.

It is an amenable number.

388288812 is an abundant number, since it is smaller than the sum of its proper divisors (540411828).

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

388288812 is a wasteful number, since it uses less digits than its factorization.

388288812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762 (or 3760 counting only the distinct ones).

The product of its digits is 393216, while the sum is 48.

The square root of 388288812 is about 19705.0453437692. The cubic root of 388288812 is about 729.5442279164.

The spelling of 388288812 in words is "three hundred eighty-eight million, two hundred eighty-eight thousand, eight hundred twelve".