448215641 has 4 divisors (see below), whose sum is σ = 457752192. Its totient is φ = 438679092.

The previous prime is 448215631. The next prime is 448215653. The reversal of 448215641 is 146512844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448215641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448215611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4768205 + ... + 4768298.

It is an arithmetic number, because the mean of its divisors is an integer number (114438048).

Almost surely, 2^448215641 is an apocalyptic number.

It is an amenable number.

448215641 is a deficient number, since it is larger than the sum of its proper divisors (9536551).

448215641 is an equidigital number, since it uses as much as digits as its factorization.

448215641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9536550.

The product of its digits is 30720, while the sum is 35.

The square root of 448215641 is about 21171.1039154788. The cubic root of 448215641 is about 765.2952231760.

The spelling of 448215641 in words is "four hundred forty-eight million, two hundred fifteen thousand, six hundred forty-one".