206356028 has 6 divisors (see below), whose sum is σ = 361123056. Its totient is φ = 103178012.

The previous prime is 206356021. The next prime is 206356037. The reversal of 206356028 is 820653602.

It is a junction number, because it is equal to n+sod(n) for n = 206355985 and 206356003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206356021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25794500 + ... + 25794507.

It is an arithmetic number, because the mean of its divisors is an integer number (60187176).

Almost surely, 2^206356028 is an apocalyptic number.

It is an amenable number.

206356028 is a deficient number, since it is larger than the sum of its proper divisors (154767028).

206356028 is a wasteful number, since it uses less digits than its factorization.

206356028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51589011 (or 51589009 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 206356028 is about 14365.0975631911. The cubic root of 206356028 is about 590.9341020563.

The spelling of 206356028 in words is "two hundred six million, three hundred fifty-six thousand, twenty-eight".