448844489 has 4 divisors (see below), whose sum is σ = 475247124. Its totient is φ = 422441856.

The previous prime is 448844419. The next prime is 448844491. The reversal of 448844489 is 984448844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 149035264 + 299809225 = 12208^2 + 17315^2 .

It is a cyclic number.

It is not a de Polignac number, because 448844489 - 2¹² = 448840393 is a prime.

It is a super-2 number, since 2×448844489² = 402922750611342242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 448844489.

It is not an unprimeable number, because it can be changed into a prime (448844419) 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, 13201292 + ... + 13201325.

It is an arithmetic number, because the mean of its divisors is an integer number (118811781).

Almost surely, 2^448844489 is an apocalyptic number.

It is an amenable number.

448844489 is a deficient number, since it is larger than the sum of its proper divisors (26402635).

448844489 is a wasteful number, since it uses less digits than its factorization.

448844489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26402634.

The product of its digits is 4718592, while the sum is 53.

The square root of 448844489 is about 21185.9502737073. The cubic root of 448844489 is about 765.6529598208.

The spelling of 448844489 in words is "four hundred forty-eight million, eight hundred forty-four thousand, four hundred eighty-nine".