540266 has 4 divisors (see below), whose sum is σ = 810402. Its totient is φ = 270132.

The previous prime is 540251. The next prime is 540269. The reversal of 540266 is 662045.

540266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 662045 = 5 ⋅132409.

It can be written as a sum of positive squares in only one way, i.e., 525625 + 14641 = 725^2 + 121^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540266.

It is not an unprimeable number, because it can be changed into a prime (540269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135065 + ... + 135068.

2⁵⁴⁰²⁶⁶ is an apocalyptic number.

540266 is a deficient number, since it is larger than the sum of its proper divisors (270136).

540266 is a wasteful number, since it uses less digits than its factorization.

540266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270135.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 540266 is about 735.0278906273. The cubic root of 540266 is about 81.4458973231.

The spelling of 540266 in words is "five hundred forty thousand, two hundred sixty-six".