4065240205 has 16 divisors (see below), whose sum is σ = 5255442864. Its totient is φ = 3000936960.

The previous prime is 4065240197. The next prime is 4065240227. The reversal of 4065240205 is 5020425604.

4065240205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 900840196 + 3164400009 = 30014^2 + 56253^2 .

It is not a de Polignac number, because 4065240205 - 2³ = 4065240197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199657 + ... + 219073.

It is an arithmetic number, because the mean of its divisors is an integer number (328465179).

Almost surely, 2^4065240205 is an apocalyptic number.

It is an amenable number.

4065240205 is a deficient number, since it is larger than the sum of its proper divisors (1190202659).

4065240205 is a wasteful number, since it uses less digits than its factorization.

4065240205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22656.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4065240205 is about 63759.2362328784. The cubic root of 4065240205 is about 1595.9847503950.

Adding to 4065240205 its reverse (5020425604), we get a palindrome (9085665809).

The spelling of 4065240205 in words is "four billion, sixty-five million, two hundred forty thousand, two hundred five".