540236 has 6 divisors (see below), whose sum is σ = 945420. Its totient is φ = 270116.

The previous prime is 540233. The next prime is 540251. The reversal of 540236 is 632045.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540236.

It is not an unprimeable number, because it can be changed into a prime (540233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67526 + ... + 67533.

It is an arithmetic number, because the mean of its divisors is an integer number (157570).

2⁵⁴⁰²³⁶ is an apocalyptic number.

It is an amenable number.

540236 is a deficient number, since it is larger than the sum of its proper divisors (405184).

540236 is a wasteful number, since it uses less digits than its factorization.

540236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135063 (or 135061 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 540236 is about 735.0074829551. The cubic root of 540236 is about 81.4443897804. Note that the first 3 decimals are identical.

Subtracting 540236 from its reverse (632045), we obtain a square (91809 = 303²).

The spelling of 540236 in words is "five hundred forty thousand, two hundred thirty-six".