40444080520 has 32 divisors (see below), whose sum is σ = 96352075800. Its totient is φ = 15226006528.

The previous prime is 40444080517. The next prime is 40444080533. The reversal of 40444080520 is 2508044404.

It can be written as a sum of positive squares in 4 ways, for example, as 25681344516 + 14762736004 = 160254^2 + 121502^2 .

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, 29737615 + ... + 29738974.

Almost surely, 2^40444080520 is an apocalyptic number.

40444080520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40444080520 is an abundant number, since it is smaller than the sum of its proper divisors (55907995280).

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

40444080520 is a wasteful number, since it uses less digits than its factorization.

40444080520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59476617 (or 59476613 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

The spelling of 40444080520 in words is "forty billion, four hundred forty-four million, eighty thousand, five hundred twenty".