206030656 has 28 divisors (see below), whose sum is σ = 440293252. Its totient is φ = 95090688.

The previous prime is 206030641. The next prime is 206030687. The reversal of 206030656 is 656030602.

It can be written as a sum of positive squares in 2 ways, for example, as 41165056 + 164865600 = 6416^2 + 12840^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122985 + ... + 124648.

It is an arithmetic number, because the mean of its divisors is an integer number (15724759).

Almost surely, 2^206030656 is an apocalyptic number.

206030656 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

206030656 is an abundant number, since it is smaller than the sum of its proper divisors (234262596).

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

206030656 is a wasteful number, since it uses less digits than its factorization.

206030656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247658 (or 247648 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 206030656 is about 14353.7680070426. The cubic root of 206030656 is about 590.6233534327.

The spelling of 206030656 in words is "two hundred six million, thirty thousand, six hundred fifty-six".