2440472130540 has 144 divisors (see below), whose sum is σ = 7484959792128. Its totient is φ = 643584154752.

The previous prime is 2440472130479. The next prime is 2440472130553. The reversal of 2440472130540 is 450312740442.

2440472130540 is a `hidden beast` number, since 2 + 4 + 4 + 0 + 472 + 130 + 54 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2440472130495 and 2440472130504.

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, 13388049 + ... + 13569111.

Almost surely, 2^{2440472130540} is an apocalyptic number.

2440472130540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440472130540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3742479896064).

2440472130540 is an abundant number, since it is smaller than the sum of its proper divisors (5044487661588).

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

2440472130540 is a wasteful number, since it uses less digits than its factorization.

2440472130540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181908 (or 181903 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

Adding to 2440472130540 its reverse (450312740442), we get a palindrome (2890784870982).

The spelling of 2440472130540 in words is "two trillion, four hundred forty billion, four hundred seventy-two million, one hundred thirty thousand, five hundred forty".