388208900 has 18 divisors (see below), whose sum is σ = 842413530. Its totient is φ = 155283520.

The previous prime is 388208897. The next prime is 388208911. The reversal of 388208900 is 9802883.

It can be written as a sum of positive squares in 3 ways, for example, as 44328964 + 343879936 = 6658^2 + 18544^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1940945 + ... + 1941144.

Almost surely, 2^388208900 is an apocalyptic number.

It is an amenable number.

388208900 is an abundant number, since it is smaller than the sum of its proper divisors (454204630).

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

388208900 is a wasteful number, since it uses less digits than its factorization.

388208900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882103 (or 3882096 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 388208900 is about 19703.0175353929. The cubic root of 388208900 is about 729.4941763942.

The spelling of 388208900 in words is "three hundred eighty-eight million, two hundred eight thousand, nine hundred".