388103860 has 12 divisors (see below), whose sum is σ = 815018148. Its totient is φ = 155241536.

The previous prime is 388103831. The next prime is 388103867. The reversal of 388103860 is 68301883.

It can be written as a sum of positive squares in 2 ways, for example, as 185667876 + 202435984 = 13626^2 + 14228^2 .

It is a super-2 number, since 2×388103860² = 301249212293799200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388103867) by changing a digit.

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, 9702577 + ... + 9702616.

It is an arithmetic number, because the mean of its divisors is an integer number (67918179).

Almost surely, 2^388103860 is an apocalyptic number.

It is an amenable number.

388103860 is an abundant number, since it is smaller than the sum of its proper divisors (426914288).

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

388103860 is a wasteful number, since it uses less digits than its factorization.

388103860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19405202 (or 19405200 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 388103860 is about 19700.3517735090. The cubic root of 388103860 is about 729.4283759275.

The spelling of 388103860 in words is "three hundred eighty-eight million, one hundred three thousand, eight hundred sixty".