388241530 has 16 divisors (see below), whose sum is σ = 706041000. Its totient is φ = 153695232.

The previous prime is 388241519. The next prime is 388241533. The reversal of 388241530 is 35142883.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 267878689 + 120362841 = 16367^2 + 10971^2 .

It is not an unprimeable number, because it can be changed into a prime (388241533) 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 7 ways as a sum of consecutive naturals, for example, 199155 + ... + 201094.

Almost surely, 2^388241530 is an apocalyptic number.

388241530 is a deficient number, since it is larger than the sum of its proper divisors (317799470).

388241530 is a wasteful number, since it uses less digits than its factorization.

388241530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400353.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 388241530 is about 19703.8455637472. The cubic root of 388241530 is about 729.5146144694.

The spelling of 388241530 in words is "three hundred eighty-eight million, two hundred forty-one thousand, five hundred thirty".