2540220714440 has 64 divisors (see below), whose sum is σ = 5744375400960. Its totient is φ = 1010959441920.

The previous prime is 2540220714439. The next prime is 2540220714457. The reversal of 2540220714440 is 444170220452.

It is a self number, because there is not a number n which added to its sum of digits gives 2540220714440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15860360 + ... + 16019720.

It is an arithmetic number, because the mean of its divisors is an integer number (89755865640).

Almost surely, 2^{2540220714440} is an apocalyptic number.

2540220714440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540220714440 is an abundant number, since it is smaller than the sum of its proper divisors (3204154686520).

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

2540220714440 is a wasteful number, since it uses less digits than its factorization.

2540220714440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161382 (or 161378 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 35.

Adding to 2540220714440 its reverse (444170220452), we get a palindrome (2984390934892).

The spelling of 2540220714440 in words is "two trillion, five hundred forty billion, two hundred twenty million, seven hundred fourteen thousand, four hundred forty".