206146020 has 24 divisors (see below), whose sum is σ = 577209024. Its totient is φ = 54972256.

The previous prime is 206146009. The next prime is 206146037. The reversal of 206146020 is 20641602.

It is a happy number.

206146020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717824 + ... + 1717943.

It is an arithmetic number, because the mean of its divisors is an integer number (24050376).

Almost surely, 2^206146020 is an apocalyptic number.

206146020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206146020 is an abundant number, since it is smaller than the sum of its proper divisors (371063004).

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

206146020 is a wasteful number, since it uses less digits than its factorization.

206146020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3435779 (or 3435777 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 206146020 is about 14357.7860410301. The cubic root of 206146020 is about 590.7335699743.

Adding to 206146020 its reverse (20641602), we get a palindrome (226787622).

The spelling of 206146020 in words is "two hundred six million, one hundred forty-six thousand, twenty".