540020881040 has 40 divisors (see below), whose sum is σ = 1256028801720. Its totient is φ = 215925728256.

The previous prime is 540020881033. The next prime is 540020881067. The reversal of 540020881040 is 40188020045.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 378805782784 + 161215098256 = 615472^2 + 401516^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 540020880988 and 540020881006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080335 + ... + 1499054.

It is an arithmetic number, because the mean of its divisors is an integer number (31400720043).

Almost surely, 2^540020881040 is an apocalyptic number.

It is an amenable number.

540020881040 is an abundant number, since it is smaller than the sum of its proper divisors (716007920680).

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

540020881040 is a wasteful number, since it uses less digits than its factorization.

540020881040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2582019 (or 2582013 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 540020881040 in words is "five hundred forty billion, twenty million, eight hundred eighty-one thousand, forty".