840448200444 has 24 divisors (see below), whose sum is σ = 1961256407040. Its totient is φ = 280119313584.

The previous prime is 840448200443. The next prime is 840448200467. The reversal of 840448200444 is 444002844048.

It is a junction number, because it is equal to n+sod(n) for n = 840448200396 and 840448200405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840448200443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644284 + ... + 3868035.

It is an arithmetic number, because the mean of its divisors is an integer number (81719016960).

Almost surely, 2^840448200444 is an apocalyptic number.

It is an amenable number.

840448200444 is an abundant number, since it is smaller than the sum of its proper divisors (1120808206596).

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

840448200444 is a wasteful number, since it uses less digits than its factorization.

840448200444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521649 (or 7521647 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 42.

The spelling of 840448200444 in words is "eight hundred forty billion, four hundred forty-eight million, two hundred thousand, four hundred forty-four".