4448408640 has 112 divisors (see below), whose sum is σ = 15210178368. Its totient is φ = 1094989824.

The previous prime is 4448408639. The next prime is 4448408669. The reversal of 4448408640 is 468048444.

It is a junction number, because it is equal to n+sod(n) for n = 4448408592 and 4448408601.

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, 165742 + ... + 190701.

It is an arithmetic number, because the mean of its divisors is an integer number (135805164).

Almost surely, 2^4448408640 is an apocalyptic number.

4448408640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4448408640 is an abundant number, since it is smaller than the sum of its proper divisors (10761769728).

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

4448408640 is a wasteful number, since it uses less digits than its factorization.

4448408640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356476 (or 356466 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 42.

The square root of 4448408640 is about 66696.3915065875. The cubic root of 4448408640 is about 1644.6300649706.

The spelling of 4448408640 in words is "four billion, four hundred forty-eight million, four hundred eight thousand, six hundred forty".