206006428 has 12 divisors (see below), whose sum is σ = 361099872. Its totient is φ = 102835040.

The previous prime is 206006419. The next prime is 206006443. The reversal of 206006428 is 824600602.

206006428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 206006396 and 206006405.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39268 + ... + 44203.

It is an arithmetic number, because the mean of its divisors is an integer number (30091656).

Almost surely, 2^206006428 is an apocalyptic number.

It is an amenable number.

206006428 is a deficient number, since it is larger than the sum of its proper divisors (155093444).

206006428 is a wasteful number, since it uses less digits than its factorization.

206006428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84092 (or 84090 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 206006428 is about 14352.9240226513. The cubic root of 206006428 is about 590.6002012413.

It can be divided in two parts, 20600 and 6428, that added together give a triangular number (27028 = T₂₃₂).

The spelling of 206006428 in words is "two hundred six million, six thousand, four hundred twenty-eight".