40444480080 has 60 divisors (see below), whose sum is σ = 135826048020. Its totient is φ = 10785194496.

The previous prime is 40444480079. The next prime is 40444480103. The reversal of 40444480080 is 8008444404.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11219893776 + 29224586304 = 105924^2 + 170952^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 28085725 + ... + 28087164.

It is an arithmetic number, because the mean of its divisors is an integer number (2263767467).

Almost surely, 2^40444480080 is an apocalyptic number.

40444480080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40444480080 is an abundant number, since it is smaller than the sum of its proper divisors (95381567940).

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

40444480080 is a wasteful number, since it uses less digits than its factorization.

40444480080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56172908 (or 56172899 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 36.

The spelling of 40444480080 in words is "forty billion, four hundred forty-four million, four hundred eighty thousand, eighty".