448223688 has 72 divisors (see below), whose sum is σ = 1334355750. Its totient is φ = 135822720.

The previous prime is 448223687. The next prime is 448223693. The reversal of 448223688 is 886322844.

It can be written as a sum of positive squares in only one way, i.e., 410548644 + 37675044 = 20262^2 + 6138^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (448223687) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 17013 + ... + 34436.

Almost surely, 2^448223688 is an apocalyptic number.

It is an amenable number.

448223688 is an abundant number, since it is smaller than the sum of its proper divisors (886132062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448223688 is a wasteful number, since it uses less digits than its factorization.

448223688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51483 (or 51465 counting only the distinct ones).

The product of its digits is 589824, while the sum is 45.

The square root of 448223688 is about 21171.2939613997. The cubic root of 448223688 is about 765.2998030354.

The spelling of 448223688 in words is "four hundred forty-eight million, two hundred twenty-three thousand, six hundred eighty-eight".