388288899 has 6 divisors (see below), whose sum is σ = 560861756. Its totient is φ = 258859260.

The previous prime is 388288889. The next prime is 388288907. The reversal of 388288899 is 998882883.

It is not a de Polignac number, because 388288899 - 2⁵ = 388288867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (388288889) 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 5 ways as a sum of consecutive naturals, for example, 21571597 + ... + 21571614.

Almost surely, 2^388288899 is an apocalyptic number.

388288899 is a deficient number, since it is larger than the sum of its proper divisors (172572857).

388288899 is a wasteful number, since it uses less digits than its factorization.

388288899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43143217 (or 43143214 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The square root of 388288899 is about 19705.0475513255. The cubic root of 388288899 is about 729.5442824036.

The spelling of 388288899 in words is "three hundred eighty-eight million, two hundred eighty-eight thousand, eight hundred ninety-nine".