449364646 has 8 divisors (see below), whose sum is σ = 674140824. Its totient is φ = 224651040.

The previous prime is 449364571. The next prime is 449364647. The reversal of 449364646 is 646463944.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 449364596 and 449364605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449364647) by changing a digit.

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, 12286 + ... + 32398.

It is an arithmetic number, because the mean of its divisors is an integer number (84267603).

Almost surely, 2^449364646 is an apocalyptic number.

449364646 is a deficient number, since it is larger than the sum of its proper divisors (224776178).

449364646 is a wasteful number, since it uses less digits than its factorization.

449364646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31286.

The product of its digits is 1492992, while the sum is 46.

The square root of 449364646 is about 21198.2227085197. Note that the first 3 decimals coincide. The cubic root of 449364646 is about 765.9486123317.

The spelling of 449364646 in words is "four hundred forty-nine million, three hundred sixty-four thousand, six hundred forty-six".