206453220 has 48 divisors (see below), whose sum is σ = 580247808. Its totient is φ = 54846720.

The previous prime is 206453209. The next prime is 206453227. The reversal of 206453220 is 22354602.

206453220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (206453227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912 + ... + 22608.

It is an arithmetic number, because the mean of its divisors is an integer number (12088496).

Almost surely, 2^206453220 is an apocalyptic number.

206453220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206453220 is an abundant number, since it is smaller than the sum of its proper divisors (373794588).

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

206453220 is a wasteful number, since it uses less digits than its factorization.

206453220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12980 (or 12978 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 206453220 is about 14368.4800866341. The cubic root of 206453220 is about 591.0268625363.

The spelling of 206453220 in words is "two hundred six million, four hundred fifty-three thousand, two hundred twenty".