448840440440 has 64 divisors (see below), whose sum is σ = 1154421927360. Its totient is φ = 153853378560.

The previous prime is 448840440409. The next prime is 448840440491. The reversal of 448840440440 is 44044048844.

It is a junction number, because it is equal to n+sod(n) for n = 448840440391 and 448840440400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075814 + ... + 1433546.

It is an arithmetic number, because the mean of its divisors is an integer number (18037842615).

Almost surely, 2^448840440440 is an apocalyptic number.

448840440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

448840440440 is an abundant number, since it is smaller than the sum of its proper divisors (705581486920).

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

448840440440 is a wasteful number, since it uses less digits than its factorization.

448840440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362232 (or 362228 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 44.

The spelling of 448840440440 in words is "four hundred forty-eight billion, eight hundred forty million, four hundred forty thousand, four hundred forty".