449436321 has 24 divisors (see below), whose sum is σ = 658206120. Its totient is φ = 295488000.

The previous prime is 449436313. The next prime is 449436341. The reversal of 449436321 is 123634944.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 61779600 + 387656721 = 7860^2 + 19689^2 .

It is not a de Polignac number, because 449436321 - 2³ = 449436313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449436341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 235471 + ... + 237371.

It is an arithmetic number, because the mean of its divisors is an integer number (27425255).

Almost surely, 2^449436321 is an apocalyptic number.

It is an amenable number.

449436321 is a deficient number, since it is larger than the sum of its proper divisors (208769799).

449436321 is a wasteful number, since it uses less digits than its factorization.

449436321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2254 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 449436321 is about 21199.9132309545. The cubic root of 449436321 is about 765.9893338620.

The spelling of 449436321 in words is "four hundred forty-nine million, four hundred thirty-six thousand, three hundred twenty-one".