540388885 has 16 divisors (see below), whose sum is σ = 672610032. Its totient is φ = 416448000.

The previous prime is 540388859. The next prime is 540388889. The reversal of 540388885 is 588883045.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 159592689 + 380796196 = 12633^2 + 19514^2 .

It is not a de Polignac number, because 540388885 - 2⁵ = 540388853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540388889) 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 15 ways as a sum of consecutive naturals, for example, 4225 + ... + 33145.

It is an arithmetic number, because the mean of its divisors is an integer number (42038127).

Almost surely, 2^540388885 is an apocalyptic number.

It is an amenable number.

540388885 is a deficient number, since it is larger than the sum of its proper divisors (132221147).

540388885 is a wasteful number, since it uses less digits than its factorization.

540388885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29064.

The product of its (nonzero) digits is 1228800, while the sum is 49.

The square root of 540388885 is about 23246.2660442489. The cubic root of 540388885 is about 814.5207188669.

The spelling of 540388885 in words is "five hundred forty million, three hundred eighty-eight thousand, eight hundred eighty-five".