206308424 has 24 divisors (see below), whose sum is σ = 449984790. Its totient is φ = 88417728.

The previous prime is 206308423. The next prime is 206308457. The reversal of 206308424 is 424803602.

It can be written as a sum of positive squares in only one way, i.e., 190164100 + 16144324 = 13790^2 + 4018^2 .

It is not an unprimeable number, because it can be changed into a prime (206308423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262757 + ... + 263540.

Almost surely, 2^206308424 is an apocalyptic number.

It is an amenable number.

206308424 is an abundant number, since it is smaller than the sum of its proper divisors (243676366).

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

206308424 is a wasteful number, since it uses less digits than its factorization.

206308424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526317 (or 526306 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 206308424 is about 14363.4405349136. The cubic root of 206308424 is about 590.8886579587. Note that the first 3 decimals are identical.

The spelling of 206308424 in words is "two hundred six million, three hundred eight thousand, four hundred twenty-four".