448162081 has 4 divisors (see below), whose sum is σ = 453197700. Its totient is φ = 443126464.

The previous prime is 448162073. The next prime is 448162097. The reversal of 448162081 is 180261844.

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 212693056 + 235469025 = 14584^2 + 15345^2 .

It is a cyclic number.

It is not a de Polignac number, because 448162081 - 2³ = 448162073 is a prime.

It is a super-2 number, since 2×448162081² = 401698501692501122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448162681) 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, 2517676 + ... + 2517853.

It is an arithmetic number, because the mean of its divisors is an integer number (113299425).

Almost surely, 2^448162081 is an apocalyptic number.

It is an amenable number.

448162081 is a deficient number, since it is larger than the sum of its proper divisors (5035619).

448162081 is an equidigital number, since it uses as much as digits as its factorization.

448162081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035618.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 448162081 is about 21169.8389460100. The cubic root of 448162081 is about 765.2647387089.

The spelling of 448162081 in words is "four hundred forty-eight million, one hundred sixty-two thousand, eighty-one".