40340255154440 has 16 divisors (see below), whose sum is σ = 90765574097580. Its totient is φ = 16136102061760.

The previous prime is 40340255154389. The next prime is 40340255154443. The reversal of 40340255154440 is 4445155204304.

It can be written as a sum of positive squares in 2 ways, for example, as 35372732460004 + 4967522694436 = 5947498^2 + 2228794^2 .

It is not an unprimeable number, because it can be changed into a prime (40340255154443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504253189391 + ... + 504253189470.

Almost surely, 2^{40340255154440} is an apocalyptic number.

40340255154440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40340255154440 is an abundant number, since it is smaller than the sum of its proper divisors (50425318943140).

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

40340255154440 is a wasteful number, since it uses less digits than its factorization.

40340255154440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008506378872 (or 1008506378868 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 41.

The spelling of 40340255154440 in words is "forty trillion, three hundred forty billion, two hundred fifty-five million, one hundred fifty-four thousand, four hundred forty".