388530850 has 12 divisors (see below), whose sum is σ = 722667474. Its totient is φ = 155412320.

The previous prime is 388530847. The next prime is 388530851. The reversal of 388530850 is 58035883.

It can be written as a sum of positive squares in 3 ways, for example, as 350326089 + 38204761 = 18717^2 + 6181^2 .

It is not an unprimeable number, because it can be changed into a prime (388530851) 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 5 ways as a sum of consecutive naturals, for example, 3885259 + ... + 3885358.

Almost surely, 2^388530850 is an apocalyptic number.

388530850 is a deficient number, since it is larger than the sum of its proper divisors (334136624).

388530850 is a wasteful number, since it uses less digits than its factorization.

388530850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770629 (or 7770624 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 388530850 is about 19711.1859105433. The cubic root of 388530850 is about 729.6957824153.

The spelling of 388530850 in words is "three hundred eighty-eight million, five hundred thirty thousand, eight hundred fifty".