206241808 has 40 divisors (see below), whose sum is σ = 430909920. Its totient is φ = 95304960.

The previous prime is 206241799. The next prime is 206241829. The reversal of 206241808 is 808142602.

It is a self number, because there is not a number n which added to its sum of digits gives 206241808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4191 + ... + 20737.

It is an arithmetic number, because the mean of its divisors is an integer number (10772748).

Almost surely, 2^206241808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206241808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215454960).

206241808 is an abundant number, since it is smaller than the sum of its proper divisors (224668112).

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

206241808 is a wasteful number, since it uses less digits than its factorization.

206241808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16615 (or 16609 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 206241808 is about 14361.1214046815. The cubic root of 206241808 is about 590.8250527416.

The spelling of 206241808 in words is "two hundred six million, two hundred forty-one thousand, eight hundred eight".