4040040449 has 2 divisors, whose sum is σ = 4040040450. Its totient is φ = 4040040448.

The previous prime is 4040040443. The next prime is 4040040461. The reversal of 4040040449 is 9440400404.

4040040449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4026790849 + 13249600 = 63457^2 + 3640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4040040449 is a prime.

It is a super-2 number, since 2×4040040449² = 32643853659112243202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4040040443) 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 as a sum of consecutive naturals, namely, 2020020224 + 2020020225.

It is an arithmetic number, because the mean of its divisors is an integer number (2020020225).

Almost surely, 2^4040040449 is an apocalyptic number.

It is an amenable number.

4040040449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040040449 is an equidigital number, since it uses as much as digits as its factorization.

4040040449 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4040040449 is about 63561.3125179145. The cubic root of 4040040449 is about 1592.6801636953.

The spelling of 4040040449 in words is "four billion, forty million, forty thousand, four hundred forty-nine".