388161238 has 8 divisors (see below), whose sum is σ = 616491432. Its totient is φ = 182664096.

The previous prime is 388161229. The next prime is 388161247. The reversal of 388161238 is 832161883.

It is an interprime number because it is at equal distance from previous prime (388161229) and next prime (388161247).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 388161238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5708220 + ... + 5708287.

It is an arithmetic number, because the mean of its divisors is an integer number (77061429).

Almost surely, 2^388161238 is an apocalyptic number.

388161238 is a deficient number, since it is larger than the sum of its proper divisors (228330194).

388161238 is a wasteful number, since it uses less digits than its factorization.

388161238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11416526.

The product of its digits is 55296, while the sum is 40.

The square root of 388161238 is about 19701.8079881010. The cubic root of 388161238 is about 729.4643208410.

The spelling of 388161238 in words is "three hundred eighty-eight million, one hundred sixty-one thousand, two hundred thirty-eight".