1440540042255 has 48 divisors (see below), whose sum is σ = 2499431160096. Its totient is φ = 767520783360.

The previous prime is 1440540042247. The next prime is 1440540042289. The reversal of 1440540042255 is 5522400450441.

1440540042255 is a `hidden beast` number, since 1 + 4 + 40 + 540 + 0 + 4 + 22 + 55 = 666.

It is not a de Polignac number, because 1440540042255 - 2³ = 1440540042247 is a prime.

It is a super-2 number, since 2×1440540042255² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346865259 + ... + 346869411.

It is an arithmetic number, because the mean of its divisors is an integer number (52071482502).

Almost surely, 2^{1440540042255} is an apocalyptic number.

1440540042255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1440540042255 is a deficient number, since it is larger than the sum of its proper divisors (1058891117841).

1440540042255 is a wasteful number, since it uses less digits than its factorization.

1440540042255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10008 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 128000, while the sum is 36.

Adding to 1440540042255 its reverse (5522400450441), we get a palindrome (6962940492696).

The spelling of 1440540042255 in words is "one trillion, four hundred forty billion, five hundred forty million, forty-two thousand, two hundred fifty-five".