449506548 has 18 divisors (see below), whose sum is σ = 1136252754. Its totient is φ = 149835504.

The previous prime is 449506529. The next prime is 449506591. The reversal of 449506548 is 845605944.

It can be written as a sum of positive squares in only one way, i.e., 430479504 + 19027044 = 20748^2 + 4362^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×449506548² = 404112273389752608, 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 a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6243111 + ... + 6243182.

It is an arithmetic number, because the mean of its divisors is an integer number (63125153).

Almost surely, 2^449506548 is an apocalyptic number.

It is an amenable number.

449506548 is an abundant number, since it is smaller than the sum of its proper divisors (686746206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449506548 is a wasteful number, since it uses less digits than its factorization.

449506548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12486303 (or 12486298 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 449506548 is about 21201.5694702067. The cubic root of 449506548 is about 766.0292285247.

It can be divided in two parts, 449506 and 548, that added together give a palindrome (450054).

The spelling of 449506548 in words is "four hundred forty-nine million, five hundred six thousand, five hundred forty-eight".