448139838 has 8 divisors (see below), whose sum is σ = 896279688. Its totient is φ = 149379944.

The previous prime is 448139821. The next prime is 448139849. The reversal of 448139838 is 838931844.

It is a sphenic number, since it is the product of 3 distinct primes.

448139838 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37344981 + ... + 37344992.

It is an arithmetic number, because the mean of its divisors is an integer number (112034961).

Almost surely, 2^448139838 is an apocalyptic number.

448139838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

448139838 is a wasteful number, since it uses less digits than its factorization.

448139838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74689978.

The product of its digits is 663552, while the sum is 48.

The square root of 448139838 is about 21169.3135930289. The cubic root of 448139838 is about 765.2520780623.

The spelling of 448139838 in words is "four hundred forty-eight million, one hundred thirty-nine thousand, eight hundred thirty-eight".