4008491449 has 2 divisors, whose sum is σ = 4008491450. Its totient is φ = 4008491448.

The previous prime is 4008491441. The next prime is 4008491551. The reversal of 4008491449 is 9441948004.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2738638224 + 1269853225 = 52332^2 + 35635^2 .

It is a cyclic number.

It is not a de Polignac number, because 4008491449 - 2³ = 4008491441 is a prime.

It is a super-2 number, since 2×4008491449² = 32136007393412239202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4008491441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2004245724 + 2004245725.

It is an arithmetic number, because the mean of its divisors is an integer number (2004245725).

Almost surely, 2^4008491449 is an apocalyptic number.

It is an amenable number.

4008491449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4008491449 is an equidigital number, since it uses as much as digits as its factorization.

4008491449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 4008491449 is about 63312.6484124618. The cubic root of 4008491449 is about 1588.5235359725.

The spelling of 4008491449 in words is "four billion, eight million, four hundred ninety-one thousand, four hundred forty-nine".