449368868 has 12 divisors (see below), whose sum is σ = 846887580. Its totient is φ = 207400992.

The previous prime is 449368859. The next prime is 449368873. The reversal of 449368868 is 868863944.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 81036004 + 368332864 = 9002^2 + 19192^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4320803 + ... + 4320906.

It is an arithmetic number, because the mean of its divisors is an integer number (70573965).

Almost surely, 2^449368868 is an apocalyptic number.

It is an amenable number.

449368868 is a deficient number, since it is larger than the sum of its proper divisors (397518712).

449368868 is a wasteful number, since it uses less digits than its factorization.

449368868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8641726 (or 8641724 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 56.

The square root of 449368868 is about 21198.3222921060. The cubic root of 449368868 is about 765.9510111444.

The spelling of 449368868 in words is "four hundred forty-nine million, three hundred sixty-eight thousand, eight hundred sixty-eight".