448540311 has 4 divisors (see below), whose sum is σ = 598053752. Its totient is φ = 299026872.

The previous prime is 448540297. The next prime is 448540343. The reversal of 448540311 is 113045844.

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

It is not a de Polignac number, because 448540311 - 2⁹ = 448539799 is a prime.

It is a super-3 number, since 3×448540311³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448540111) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 74756716 + ... + 74756721.

It is an arithmetic number, because the mean of its divisors is an integer number (149513438).

Almost surely, 2^448540311 is an apocalyptic number.

448540311 is a deficient number, since it is larger than the sum of its proper divisors (149513441).

448540311 is a wasteful number, since it uses less digits than its factorization.

448540311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149513440.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 448540311 is about 21178.7702900806. The cubic root of 448540311 is about 765.4799619549.

The spelling of 448540311 in words is "four hundred forty-eight million, five hundred forty thousand, three hundred eleven".