388387268 has 6 divisors (see below), whose sum is σ = 679677726. Its totient is φ = 194193632.

The previous prime is 388387213. The next prime is 388387271. The reversal of 388387268 is 862783883.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 191490244 = 14032^2 + 13838^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 48548405 + ... + 48548412.

It is an arithmetic number, because the mean of its divisors is an integer number (113279621).

Almost surely, 2^388387268 is an apocalyptic number.

It is an amenable number.

388387268 is a deficient number, since it is larger than the sum of its proper divisors (291290458).

388387268 is a wasteful number, since it uses less digits than its factorization.

388387268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97096821 (or 97096819 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 53.

The square root of 388387268 is about 19707.5434288498. The cubic root of 388387268 is about 729.6058847160.

The spelling of 388387268 in words is "three hundred eighty-eight million, three hundred eighty-seven thousand, two hundred sixty-eight".