540537636 has 12 divisors (see below), whose sum is σ = 1261254512. Its totient is φ = 180179208.

The previous prime is 540537629. The next prime is 540537637. The reversal of 540537636 is 636735045.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 540537594 and 540537603.

It is not an unprimeable number, because it can be changed into a prime (540537637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22522390 + ... + 22522413.

Almost surely, 2^540537636 is an apocalyptic number.

It is an amenable number.

540537636 is an abundant number, since it is smaller than the sum of its proper divisors (720716876).

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

540537636 is a wasteful number, since it uses less digits than its factorization.

540537636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45044810 (or 45044808 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The square root of 540537636 is about 23249.4652841737. The cubic root of 540537636 is about 814.5954487879.

The spelling of 540537636 in words is "five hundred forty million, five hundred thirty-seven thousand, six hundred thirty-six".