206526020 has 24 divisors (see below), whose sum is σ = 444284568. Its totient is φ = 80595200.

The previous prime is 206526017. The next prime is 206526041. The reversal of 206526020 is 20625602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7828804 + 198697216 = 2798^2 + 14096^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125111 + ... + 126750.

It is an arithmetic number, because the mean of its divisors is an integer number (18511857).

Almost surely, 2^206526020 is an apocalyptic number.

206526020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206526020 is an abundant number, since it is smaller than the sum of its proper divisors (237758548).

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

206526020 is a wasteful number, since it uses less digits than its factorization.

206526020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251911 (or 251909 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 206526020 is about 14371.0131862719. The cubic root of 206526020 is about 591.0963241140.

The spelling of 206526020 in words is "two hundred six million, five hundred twenty-six thousand, twenty".