449949321 has 12 divisors (see below), whose sum is σ = 650174772. Its totient is φ = 299851776.

The previous prime is 449949307. The next prime is 449949323. The reversal of 449949321 is 123949944.

It can be written as a sum of positive squares in 2 ways, for example, as 408848400 + 41100921 = 20220^2 + 6411^2 .

It is not a de Polignac number, because 449949321 - 2¹¹ = 449947273 is a prime.

It is a super-2 number, since 2×449949321² = 404908782936722082, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (449949323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20265 + ... + 36201.

It is an arithmetic number, because the mean of its divisors is an integer number (54181231).

Almost surely, 2^449949321 is an apocalyptic number.

It is an amenable number.

449949321 is a deficient number, since it is larger than the sum of its proper divisors (200225451).

449949321 is a wasteful number, since it uses less digits than its factorization.

449949321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19080 (or 19077 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 449949321 is about 21212.0088864775. The cubic root of 449949321 is about 766.2806640575.

The spelling of 449949321 in words is "four hundred forty-nine million, nine hundred forty-nine thousand, three hundred twenty-one".