540502440 has 32 divisors (see below), whose sum is σ = 1621507680. Its totient is φ = 144133952.

The previous prime is 540502421. The next prime is 540502447. The reversal of 540502440 is 44205045.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 540502440.

It is not an unprimeable number, because it can be changed into a prime (540502447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2251974 + ... + 2252213.

It is an arithmetic number, because the mean of its divisors is an integer number (50672115).

Almost surely, 2^540502440 is an apocalyptic number.

It is an amenable number.

540502440 is an abundant number, since it is smaller than the sum of its proper divisors (1081005240).

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

540502440 is a wasteful number, since it uses less digits than its factorization.

540502440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4504201 (or 4504197 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 540502440 is about 23248.7083512181. The cubic root of 540502440 is about 814.5777681666.

Adding to 540502440 its reverse (44205045), we get a palindrome (584707485).

The spelling of 540502440 in words is "five hundred forty million, five hundred two thousand, four hundred forty".