448213478 has 4 divisors (see below), whose sum is σ = 672320220. Its totient is φ = 224106738.

The previous prime is 448213459. The next prime is 448213499. The reversal of 448213478 is 874312844.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 112053368 + ... + 112053371.

It is an arithmetic number, because the mean of its divisors is an integer number (168080055).

Almost surely, 2^448213478 is an apocalyptic number.

448213478 is a deficient number, since it is larger than the sum of its proper divisors (224106742).

448213478 is a wasteful number, since it uses less digits than its factorization.

448213478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224106741.

The product of its digits is 172032, while the sum is 41.

The square root of 448213478 is about 21171.0528316378. The cubic root of 448213478 is about 765.2939921196.

The spelling of 448213478 in words is "four hundred forty-eight million, two hundred thirteen thousand, four hundred seventy-eight".