206436530 has 16 divisors (see below), whose sum is σ = 371995200. Its totient is φ = 82483632.

The previous prime is 206436511. The next prime is 206436541. The reversal of 206436530 is 35634602.

It is a junction number, because it is equal to n+sod(n) for n = 206436493 and 206436502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1430 + ... + 20369.

It is an arithmetic number, because the mean of its divisors is an integer number (23249700).

Almost surely, 2^206436530 is an apocalyptic number.

206436530 is a deficient number, since it is larger than the sum of its proper divisors (165558670).

206436530 is a wasteful number, since it uses less digits than its factorization.

206436530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22753.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 206436530 is about 14367.8992897361. The cubic root of 206436530 is about 591.0109355962.

The spelling of 206436530 in words is "two hundred six million, four hundred thirty-six thousand, five hundred thirty".