540436 has 24 divisors (see below), whose sum is σ = 1074080. Its totient is φ = 235872.

The previous prime is 540433. The next prime is 540437. The reversal of 540436 is 634045.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540436.

It is not an unprimeable number, because it can be changed into a prime (540433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715 + ... + 1261.

2⁵⁴⁰⁴³⁶ is an apocalyptic number.

It is an amenable number.

540436 is a deficient number, since it is larger than the sum of its proper divisors (533644).

540436 is a wasteful number, since it uses less digits than its factorization.

540436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 540436 is about 735.1435234021. The cubic root of 540436 is about 81.4544390109.

The spelling of 540436 in words is "five hundred forty thousand, four hundred thirty-six".