448442278 has 4 divisors (see below), whose sum is σ = 672663420. Its totient is φ = 224221138.

The previous prime is 448442263. The next prime is 448442279. The reversal of 448442278 is 872244844.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×448442278² = 402200953395658568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448442279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112110568 + ... + 112110571.

It is an arithmetic number, because the mean of its divisors is an integer number (168165855).

Almost surely, 2^448442278 is an apocalyptic number.

448442278 is a deficient number, since it is larger than the sum of its proper divisors (224221142).

448442278 is a wasteful number, since it uses less digits than its factorization.

448442278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224221141.

The product of its digits is 458752, while the sum is 43.

The square root of 448442278 is about 21176.4557468902. The cubic root of 448442278 is about 765.4241901079.

The spelling of 448442278 in words is "four hundred forty-eight million, four hundred forty-two thousand, two hundred seventy-eight".