540068818 has 16 divisors (see below), whose sum is σ = 858907800. Its totient is φ = 253808896.

The previous prime is 540068797. The next prime is 540068833. The reversal of 540068818 is 818860045.

It can be written as a sum of positive squares in 4 ways, for example, as 521345889 + 18722929 = 22833^2 + 4327^2 .

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, 16008 + ... + 36556.

Almost surely, 2^540068818 is an apocalyptic number.

540068818 is a deficient number, since it is larger than the sum of its proper divisors (318838982).

540068818 is a wasteful number, since it uses less digits than its factorization.

540068818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21341.

The product of its (nonzero) digits is 61440, while the sum is 40.

The square root of 540068818 is about 23239.3807576708. The cubic root of 540068818 is about 814.3598762482.

The spelling of 540068818 in words is "five hundred forty million, sixty-eight thousand, eight hundred eighteen".