540122043540 has 48 divisors (see below), whose sum is σ = 1512376975872. Its totient is φ = 144029187456.

The previous prime is 540122043533. The next prime is 540122043541. The reversal of 540122043540 is 45340221045.

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 = 540122043498 and 540122043507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540122043541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3532762 + ... + 3682478.

It is an arithmetic number, because the mean of its divisors is an integer number (31507853664).

Almost surely, 2^540122043540 is an apocalyptic number.

It is an amenable number.

540122043540 is an abundant number, since it is smaller than the sum of its proper divisors (972254932332).

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

540122043540 is a wasteful number, since it uses less digits than its factorization.

540122043540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209856 (or 209854 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 540122043540 its reverse (45340221045), we get a palindrome (585462264585).

The spelling of 540122043540 in words is "five hundred forty billion, one hundred twenty-two million, forty-three thousand, five hundred forty".