206384128 has 22 divisors (see below), whose sum is σ = 412568756. Its totient is φ = 103191552.

The previous prime is 206384117. The next prime is 206384141. The reversal of 206384128 is 821483602.

It is a junction number, because it is equal to n+sod(n) for n = 206384093 and 206384102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99750 + ... + 101797.

Almost surely, 2^206384128 is an apocalyptic number.

It is an amenable number.

206384128 is a deficient number, since it is larger than the sum of its proper divisors (206184628).

206384128 is an equidigital number, since it uses as much as digits as its factorization.

206384128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201567 (or 201549 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 206384128 is about 14366.0755949563. The cubic root of 206384128 is about 590.9609238147.

The spelling of 206384128 in words is "two hundred six million, three hundred eighty-four thousand, one hundred twenty-eight".