540621884442 has 32 divisors (see below), whose sum is σ = 1125083872512. Its totient is φ = 173045297984.

The previous prime is 540621884441. The next prime is 540621884477. The reversal of 540621884442 is 244488126045.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 540621884391 and 540621884400.

It is not an unprimeable number, because it can be changed into a prime (540621884441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18070893 + ... + 18100784.

It is an arithmetic number, because the mean of its divisors is an integer number (35158871016).

Almost surely, 2^540621884442 is an apocalyptic number.

540621884442 is an abundant number, since it is smaller than the sum of its proper divisors (584461988070).

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

540621884442 is a wasteful number, since it uses less digits than its factorization.

540621884442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36171782.

The product of its (nonzero) digits is 1966080, while the sum is 48.

The spelling of 540621884442 in words is "five hundred forty billion, six hundred twenty-one million, eight hundred eighty-four thousand, four hundred forty-two".