206035240 has 128 divisors (see below), whose sum is σ = 531878400. Its totient is φ = 71331840.

The previous prime is 206035211. The next prime is 206035243. The reversal of 206035240 is 42530602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (206035243) 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 31 ways as a sum of consecutive naturals, for example, 477825 + ... + 478255.

It is an arithmetic number, because the mean of its divisors is an integer number (4155300).

Almost surely, 2^206035240 is an apocalyptic number.

206035240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206035240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265939200).

206035240 is an abundant number, since it is smaller than the sum of its proper divisors (325843160).

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

206035240 is a wasteful number, since it uses less digits than its factorization.

206035240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 511 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 206035240 is about 14353.9276854804. The cubic root of 206035240 is about 590.6277336827.

Adding to 206035240 its reverse (42530602), we get a palindrome (248565842).

The spelling of 206035240 in words is "two hundred six million, thirty-five thousand, two hundred forty".