448399761 has 4 divisors (see below), whose sum is σ = 597866352. Its totient is φ = 298933172.

The previous prime is 448399759. The next prime is 448399811. The reversal of 448399761 is 167993844.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 448399761 - 2¹ = 448399759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448399751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74733291 + ... + 74733296.

It is an arithmetic number, because the mean of its divisors is an integer number (149466588).

Almost surely, 2^448399761 is an apocalyptic number.

It is an amenable number.

448399761 is a deficient number, since it is larger than the sum of its proper divisors (149466591).

448399761 is a wasteful number, since it uses less digits than its factorization.

448399761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149466590.

The product of its digits is 1306368, while the sum is 51.

The square root of 448399761 is about 21175.4518487800. The cubic root of 448399761 is about 765.3999992808.

The spelling of 448399761 in words is "four hundred forty-eight million, three hundred ninety-nine thousand, seven hundred sixty-one".