206000000 has 112 divisors (see below), whose sum is σ = 517962120. Its totient is φ = 81600000.

The previous prime is 205999987. The next prime is 206000059. The reversal of 206000000 is 602.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1999949 + ... + 2000051.

Almost surely, 2^206000000 is an apocalyptic number.

206000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258981060).

206000000 is an abundant number, since it is smaller than the sum of its proper divisors (311962120).

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

206000000 is an frugal number, since it uses more digits than its factorization.

206000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 206000000 is about 14352.7000944073. The cubic root of 206000000 is about 590.5940583624.

Adding to 206000000 its reverse (602), we get a palindrome (206000602).

The spelling of 206000000 in words is "two hundred six million", and thus it is an aban number.