448513 has 4 divisors (see below), whose sum is σ = 483028. Its totient is φ = 414000.

The previous prime is 448451. The next prime is 448519. The reversal of 448513 is 315844.

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 153664 + 294849 = 392^2 + 543^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448513 is a prime.

It is a super-2 number, since 2×448513² = 402327822338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (448519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17238 + ... + 17263.

It is an arithmetic number, because the mean of its divisors is an integer number (120757).

448513 is a Friedman number, since it can be written as 438*4^5+1, using all its digits and the basic arithmetic operations.

It is a Proth number, since it is equal to 219 ⋅ 2¹¹ + 1 and 219 < 2¹¹.

2⁴⁴⁸⁵¹³ is an apocalyptic number.

It is an amenable number.

448513 is a deficient number, since it is larger than the sum of its proper divisors (34515).

448513 is a wasteful number, since it uses less digits than its factorization.

448513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34514.

The product of its digits is 1920, while the sum is 25.

The square root of 448513 is about 669.7111317576. The cubic root of 448513 is about 76.5464425300.

It can be divided in two parts, 448 and 513, that added together give a square (961 = 31²).

The spelling of 448513 in words is "four hundred forty-eight thousand, five hundred thirteen".