206040885 has 16 divisors (see below), whose sum is σ = 330437184. Its totient is φ = 109631232.

The previous prime is 206040881. The next prime is 206040889. The reversal of 206040885 is 588040602.

It is an interprime number because it is at equal distance from previous prime (206040881) and next prime (206040889).

It is not a de Polignac number, because 206040885 - 2² = 206040881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206040881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9367 + ... + 22356.

It is an arithmetic number, because the mean of its divisors is an integer number (20652324).

Almost surely, 2^206040885 is an apocalyptic number.

It is an amenable number.

206040885 is a deficient number, since it is larger than the sum of its proper divisors (124396299).

206040885 is a wasteful number, since it uses less digits than its factorization.

206040885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32164.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 206040885 is about 14354.1243202085. The cubic root of 206040885 is about 590.6331276841.

The spelling of 206040885 in words is "two hundred six million, forty thousand, eight hundred eighty-five".