449319943 has 12 divisors (see below), whose sum is σ = 471311568. Its totient is φ = 428094240.

The previous prime is 449319931. The next prime is 449319947. The reversal of 449319943 is 349913944.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-449319943 is a prime.

It is a super-2 number, since 2×449319943² = 403776822355046498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449319893 and 449319902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449319947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72846 + ... + 78772.

It is an arithmetic number, because the mean of its divisors is an integer number (39275964).

Almost surely, 2^449319943 is an apocalyptic number.

449319943 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

449319943 is a deficient number, since it is larger than the sum of its proper divisors (21991625).

449319943 is an equidigital number, since it uses as much as digits as its factorization.

449319943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054 (or 6011 counting only the distinct ones).

The product of its digits is 419904, while the sum is 46.

The square root of 449319943 is about 21197.1682778620. The cubic root of 449319943 is about 765.9232125169.

The spelling of 449319943 in words is "four hundred forty-nine million, three hundred nineteen thousand, nine hundred forty-three".