2540341040340 has 24 divisors (see below), whose sum is σ = 7112954913120. Its totient is φ = 677424277408.

The previous prime is 2540341040333. The next prime is 2540341040401. The reversal of 2540341040340 is 430401430452.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2540341040298 and 2540341040307.

It is a congruent number.

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, 21169508610 + ... + 21169508729.

It is an arithmetic number, because the mean of its divisors is an integer number (296373121380).

Almost surely, 2^{2540341040340} is an apocalyptic number.

2540341040340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540341040340 is an abundant number, since it is smaller than the sum of its proper divisors (4572613872780).

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

2540341040340 is a wasteful number, since it uses less digits than its factorization.

2540341040340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42339017351 (or 42339017349 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 2540341040340 its reverse (430401430452), we get a palindrome (2970742470792).

The spelling of 2540341040340 in words is "two trillion, five hundred forty billion, three hundred forty-one million, forty thousand, three hundred forty".