206636130 has 32 divisors (see below), whose sum is σ = 551030400. Its totient is φ = 55102896.

The previous prime is 206636123. The next prime is 206636147. The reversal of 206636130 is 31636602.

206636130 is a `hidden beast` number, since 20 + 6 + 636 + 1 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 206636094 and 206636103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382390 + ... + 382929.

It is an arithmetic number, because the mean of its divisors is an integer number (17219700).

Almost surely, 2^206636130 is an apocalyptic number.

206636130 is an abundant number, since it is smaller than the sum of its proper divisors (344394270).

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

206636130 is a wasteful number, since it uses less digits than its factorization.

206636130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765335 (or 765329 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 206636130 is about 14374.8436513237. The cubic root of 206636130 is about 591.2013537415.

The spelling of 206636130 in words is "two hundred six million, six hundred thirty-six thousand, one hundred thirty".