448649 has 6 divisors (see below), whose sum is σ = 460170. Its totient is φ = 437360.

The previous prime is 448633. The next prime is 448667. The reversal of 448649 is 946844.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 126025 = 568^2 + 355^2 .

It is not a de Polignac number, because 448649 - 2⁴ = 448633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 448649.

It is not an unprimeable number, because it can be changed into a prime (448249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4997 + ... + 5085.

It is an arithmetic number, because the mean of its divisors is an integer number (76695).

2⁴⁴⁸⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

448649 is a deficient number, since it is larger than the sum of its proper divisors (11521).

448649 is an frugal number, since it uses more digits than its factorization.

448649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231 (or 160 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 448649 is about 669.8126603760. The cubic root of 448649 is about 76.5541786597.

The spelling of 448649 in words is "four hundred forty-eight thousand, six hundred forty-nine".