448181 has 4 divisors (see below), whose sum is σ = 460332. Its totient is φ = 436032.

The previous prime is 448177. The next prime is 448187. The reversal of 448181 is 181844.

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 280900 + 167281 = 530^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 448181 - 2² = 448177 is a prime.

It is a super-2 number, since 2×448181² = 401732417522, 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 448181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6020 + ... + 6093.

It is an arithmetic number, because the mean of its divisors is an integer number (115083).

2⁴⁴⁸¹⁸¹ is an apocalyptic number.

It is an amenable number.

448181 is a deficient number, since it is larger than the sum of its proper divisors (12151).

448181 is a wasteful number, since it uses less digits than its factorization.

448181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12150.

The product of its digits is 1024, while the sum is 26.

The square root of 448181 is about 669.4632178096. The cubic root of 448181 is about 76.5275507015.

The spelling of 448181 in words is "four hundred forty-eight thousand, one hundred eighty-one".