4040342209 has 2 divisors, whose sum is σ = 4040342210. Its totient is φ = 4040342208.

The previous prime is 4040342107. The next prime is 4040342227. The reversal of 4040342209 is 9022430404.

4040342209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3399239809 + 641102400 = 58303^2 + 25320^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040342209 - 2¹⁷ = 4040211137 is a prime.

It is a super-3 number, since 3×4040342209³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4040342239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020171104 + 2020171105.

It is an arithmetic number, because the mean of its divisors is an integer number (2020171105).

Almost surely, 2^4040342209 is an apocalyptic number.

It is an amenable number.

4040342209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040342209 is an equidigital number, since it uses as much as digits as its factorization.

4040342209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4040342209 is about 63563.6862445847. The cubic root of 4040342209 is about 1592.7198163677.

The spelling of 4040342209 in words is "four billion, forty million, three hundred forty-two thousand, two hundred nine".