206728050 has 24 divisors (see below), whose sum is σ = 512685936. Its totient is φ = 55127440.

The previous prime is 206728033. The next prime is 206728061. The reversal of 206728050 is 50827602.

206728050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 206727999 and 206728017.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 688944 + ... + 689243.

It is an arithmetic number, because the mean of its divisors is an integer number (21361914).

Almost surely, 2^206728050 is an apocalyptic number.

206728050 is an abundant number, since it is smaller than the sum of its proper divisors (305957886).

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

206728050 is a wasteful number, since it uses less digits than its factorization.

206728050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378202 (or 1378197 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 206728050 is about 14378.0405480024. The cubic root of 206728050 is about 591.2890040674.

The spelling of 206728050 in words is "two hundred six million, seven hundred twenty-eight thousand, fifty".