448305140 has 24 divisors (see below), whose sum is σ = 943262880. Its totient is φ = 178975008.

The previous prime is 448305139. The next prime is 448305149. The reversal of 448305140 is 41503844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448305149) 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 7 ways as a sum of consecutive naturals, for example, 10970 + ... + 31889.

It is an arithmetic number, because the mean of its divisors is an integer number (39302620).

Almost surely, 2^448305140 is an apocalyptic number.

It is an amenable number.

448305140 is an abundant number, since it is smaller than the sum of its proper divisors (494957740).

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

448305140 is a wasteful number, since it uses less digits than its factorization.

448305140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43391 (or 43389 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 448305140 is about 21173.2175164759. The cubic root of 448305140 is about 765.3461574381.

Adding to 448305140 its reverse (41503844), we get a palindrome (489808984).

The spelling of 448305140 in words is "four hundred forty-eight million, three hundred five thousand, one hundred forty".