40255320334440 has 64 divisors (see below), whose sum is σ = 120833541927360. Its totient is φ = 10728744896000.

The previous prime is 40255320334367. The next prime is 40255320334459. The reversal of 40255320334440 is 4443302355204.

It is a super-2 number, since 2×40255320334440² (a number of 28 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 93647061 + ... + 94075940.

It is an arithmetic number, because the mean of its divisors is an integer number (1888024092615).

Almost surely, 2^{40255320334440} is an apocalyptic number.

40255320334440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40255320334440 is an abundant number, since it is smaller than the sum of its proper divisors (80578221592920).

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

40255320334440 is a wasteful number, since it uses less digits than its factorization.

40255320334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187724802 (or 187724798 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 39.

Adding to 40255320334440 its reverse (4443302355204), we get a palindrome (44698622689644).

The spelling of 40255320334440 in words is "forty trillion, two hundred fifty-five billion, three hundred twenty million, three hundred thirty-four thousand, four hundred forty".