206882440 has 16 divisors (see below), whose sum is σ = 465485580. Its totient is φ = 82752960.

The previous prime is 206882413. The next prime is 206882449. The reversal of 206882440 is 44288602.

It can be written as a sum of positive squares in 2 ways, for example, as 200562244 + 6320196 = 14162^2 + 2514^2 .

It is a junction number, because it is equal to n+sod(n) for n = 206882396 and 206882405.

It is not an unprimeable number, because it can be changed into a prime (206882449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585991 + ... + 2586070.

Almost surely, 2^206882440 is an apocalyptic number.

206882440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206882440 is an abundant number, since it is smaller than the sum of its proper divisors (258603140).

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

206882440 is a wasteful number, since it uses less digits than its factorization.

206882440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5172072 (or 5172068 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 206882440 is about 14383.4084972930. The cubic root of 206882440 is about 591.4361642182.

The spelling of 206882440 in words is "two hundred six million, eight hundred eighty-two thousand, four hundred forty".