448815379 has 4 divisors (see below), whose sum is σ = 455514184. Its totient is φ = 442116576.

The previous prime is 448815373. The next prime is 448815401. The reversal of 448815379 is 973518844.

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 448815379 - 2³ = 448815371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448815371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3349302 + ... + 3349435.

It is an arithmetic number, because the mean of its divisors is an integer number (113878546).

Almost surely, 2^448815379 is an apocalyptic number.

448815379 is a deficient number, since it is larger than the sum of its proper divisors (6698805).

448815379 is an equidigital number, since it uses as much as digits as its factorization.

448815379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6698804.

The product of its digits is 967680, while the sum is 49.

The square root of 448815379 is about 21185.2632506655. The cubic root of 448815379 is about 765.6364072136.

The spelling of 448815379 in words is "four hundred forty-eight million, eight hundred fifteen thousand, three hundred seventy-nine".