40055041440 has 72 divisors (see below), whose sum is σ = 136687833828. Its totient is φ = 10681344000.

The previous prime is 40055041421. The next prime is 40055041457. The reversal of 40055041440 is 4414055004.

It can be written as a sum of positive squares in 2 ways, for example, as 38489731344 + 1565310096 = 196188^2 + 39564^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13906561 + ... + 13909440.

Almost surely, 2^40055041440 is an apocalyptic number.

40055041440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40055041440 is an abundant number, since it is smaller than the sum of its proper divisors (96632792388).

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

40055041440 is a wasteful number, since it uses less digits than its factorization.

40055041440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27816022 (or 27816011 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 40055041440 its reverse (4414055004), we get a palindrome (44469096444).

The spelling of 40055041440 in words is "forty billion, fifty-five million, forty-one thousand, four hundred forty".