206271020 has 12 divisors (see below), whose sum is σ = 433169184. Its totient is φ = 82508400.

The previous prime is 206271007. The next prime is 206271029. The reversal of 206271020 is 20172602.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10313551 = 206271020 / (2 + 0 + 6 + 2 + 7 + 1 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 206270983 and 206271001.

It is not an unprimeable number, because it can be changed into a prime (206271029) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5156756 + ... + 5156795.

It is an arithmetic number, because the mean of its divisors is an integer number (36097432).

Almost surely, 2^206271020 is an apocalyptic number.

206271020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206271020 is an abundant number, since it is smaller than the sum of its proper divisors (226898164).

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

206271020 is a wasteful number, since it uses less digits than its factorization.

206271020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313560 (or 10313558 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 206271020 is about 14362.1384201657. The cubic root of 206271020 is about 590.8529461593.

The spelling of 206271020 in words is "two hundred six million, two hundred seventy-one thousand, twenty".