4040213449 has 2 divisors, whose sum is σ = 4040213450. Its totient is φ = 4040213448.

The previous prime is 4040213423. The next prime is 4040213453. The reversal of 4040213449 is 9443120404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3584177424 + 456036025 = 59868^2 + 21355^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040213449 - 2⁹ = 4040212937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4040213449.

It is not a weakly prime, because it can be changed into another prime (4040213249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020106724 + 2020106725.

It is an arithmetic number, because the mean of its divisors is an integer number (2020106725).

Almost surely, 2^4040213449 is an apocalyptic number.

It is an amenable number.

4040213449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040213449 is an equidigital number, since it uses as much as digits as its factorization.

4040213449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 4040213449 is about 63562.6733940604. The cubic root of 4040213449 is about 1592.7028969442.

The spelling of 4040213449 in words is "four billion, forty million, two hundred thirteen thousand, four hundred forty-nine".