8404448440 has 64 divisors (see below), whose sum is σ = 20668296960. Its totient is φ = 3061954560.

The previous prime is 8404448369. The next prime is 8404448441. The reversal of 8404448440 is 448444048.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8404448393 and 8404448402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404448441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178267 + ... + 220426.

It is an arithmetic number, because the mean of its divisors is an integer number (322942140).

Almost surely, 2^8404448440 is an apocalyptic number.

It is an amenable number.

8404448440 is an abundant number, since it is smaller than the sum of its proper divisors (12263848520).

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

8404448440 is a wasteful number, since it uses less digits than its factorization.

8404448440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398752 (or 398748 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The square root of 8404448440 is about 91675.7789167891. The cubic root of 8404448440 is about 2033.1514898445.

The spelling of 8404448440 in words is "eight billion, four hundred four million, four hundred forty-eight thousand, four hundred forty".