840080044880 has 40 divisors (see below), whose sum is σ = 1953886941000. Its totient is φ = 335911443968.

The previous prime is 840080044879. The next prime is 840080044891. The reversal of 840080044880 is 88440080048.

It can be written as a sum of positive squares in 4 ways, for example, as 5933929024 + 834146115856 = 77032^2 + 913316^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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, 1659455 + ... + 2105694.

It is an arithmetic number, because the mean of its divisors is an integer number (48847173525).

Almost surely, 2^840080044880 is an apocalyptic number.

840080044880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

840080044880 is an abundant number, since it is smaller than the sum of its proper divisors (1113806896120).

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

840080044880 is a wasteful number, since it uses less digits than its factorization.

840080044880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3767951 (or 3767945 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 44.

The spelling of 840080044880 in words is "eight hundred forty billion, eighty million, forty-four thousand, eight hundred eighty".