442448 has 10 divisors (see below), whose sum is σ = 857274. Its totient is φ = 221216.

The previous prime is 442447. The next prime is 442457. The reversal of 442448 is 844244.

It can be written as a sum of positive squares in only one way, i.e., 238144 + 204304 = 488^2 + 452^2 .

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

It is a d-powerful number, because it can be written as 4² + 4³ + 4⁷ + 2¹⁷ + 4⁹ + 8⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13811 + ... + 13842.

2⁴⁴²⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

442448 is a deficient number, since it is larger than the sum of its proper divisors (414826).

442448 is a wasteful number, since it uses less digits than its factorization.

442448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27661 (or 27655 counting only the distinct ones).

The product of its digits is 4096, while the sum is 26.

The square root of 442448 is about 665.1676480407. The cubic root of 442448 is about 76.1998433920.

The spelling of 442448 in words is "four hundred forty-two thousand, four hundred forty-eight".