448669571 has 12 divisors (see below), whose sum is σ = 521631792. Its totient is φ = 378035184.

The previous prime is 448669547. The next prime is 448669577. The reversal of 448669571 is 175966844.

It is not a de Polignac number, because 448669571 - 2¹⁰ = 448668547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448669577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15161 + ... + 33573.

It is an arithmetic number, because the mean of its divisors is an integer number (43469316).

Almost surely, 2^448669571 is an apocalyptic number.

448669571 is a deficient number, since it is larger than the sum of its proper divisors (72962221).

448669571 is an equidigital number, since it uses as much as digits as its factorization.

448669571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18538 (or 18479 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The square root of 448669571 is about 21181.8217110805. The cubic root of 448669571 is about 765.5534867005.

The spelling of 448669571 in words is "four hundred forty-eight million, six hundred sixty-nine thousand, five hundred seventy-one".