448981 has 4 divisors (see below), whose sum is σ = 483532. Its totient is φ = 414432.

The previous prime is 448969. The next prime is 448993. The reversal of 448981 is 189844.

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

It is an interprime number because it is at equal distance from previous prime (448969) and next prime (448993).

It can be written as a sum of positive squares in 2 ways, for example, as 70756 + 378225 = 266^2 + 615^2 .

It is a cyclic number.

It is not a de Polignac number, because 448981 - 2⁷ = 448853 is a prime.

It is a super-2 number, since 2×448981² = 403167876722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418981) 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, 17256 + ... + 17281.

It is an arithmetic number, because the mean of its divisors is an integer number (120883).

2⁴⁴⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

448981 is a deficient number, since it is larger than the sum of its proper divisors (34551).

448981 is a wasteful number, since it uses less digits than its factorization.

448981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34550.

The product of its digits is 9216, while the sum is 34.

The square root of 448981 is about 670.0604450346. The cubic root of 448981 is about 76.5730573530.

It can be divided in two parts, 4489 and 81, that multiplied together give a square (363609 = 603²).

The spelling of 448981 in words is "four hundred forty-eight thousand, nine hundred eighty-one".