206822628 has 36 divisors (see below), whose sum is σ = 523324620. Its totient is φ = 68871936.

The previous prime is 206822621. The next prime is 206822641. The reversal of 206822628 is 826228602.

206822628 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 22 + 628 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156950784 + 49871844 = 12528^2 + 7062^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 206822592 and 206822601.

It is not an unprimeable number, because it can be changed into a prime (206822621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44176 + ... + 48632.

It is an arithmetic number, because the mean of its divisors is an integer number (14536795).

Almost surely, 2^206822628 is an apocalyptic number.

It is an amenable number.

206822628 is an abundant number, since it is smaller than the sum of its proper divisors (316501992).

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

206822628 is a wasteful number, since it uses less digits than its factorization.

206822628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756 (or 5751 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 206822628 is about 14381.3291458057. The cubic root of 206822628 is about 591.3791618138.

The spelling of 206822628 in words is "two hundred six million, eight hundred twenty-two thousand, six hundred twenty-eight".