448794139 has 4 divisors (see below), whose sum is σ = 459231256. Its totient is φ = 438357024.

The previous prime is 448794133. The next prime is 448794163. The reversal of 448794139 is 931497844.

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

It is a cyclic number.

It is not a de Polignac number, because 448794139 - 2⁷ = 448794011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 448794092 and 448794101.

It is not an unprimeable number, because it can be changed into a prime (448794133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5218494 + ... + 5218579.

It is an arithmetic number, because the mean of its divisors is an integer number (114807814).

Almost surely, 2^448794139 is an apocalyptic number.

448794139 is a deficient number, since it is larger than the sum of its proper divisors (10437117).

448794139 is a wasteful number, since it uses less digits than its factorization.

448794139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437116.

The product of its digits is 870912, while the sum is 49.

The square root of 448794139 is about 21184.7619528755. The cubic root of 448794139 is about 765.6243292156.

The spelling of 448794139 in words is "four hundred forty-eight million, seven hundred ninety-four thousand, one hundred thirty-nine".