540385 has 16 divisors (see below), whose sum is σ = 700416. Its totient is φ = 399168.

The previous prime is 540383. The next prime is 540389. The reversal of 540385 is 583045.

It is a happy number.

540385 is nontrivially palindromic in base 15.

540385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 540385 - 2¹ = 540383 is a prime.

It is a Duffinian number.

540385 is a lucky number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (540383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4192 + ... + 4318.

It is an arithmetic number, because the mean of its divisors is an integer number (43776).

2⁵⁴⁰³⁸⁵ is an apocalyptic number.

It is an amenable number.

540385 is a deficient number, since it is larger than the sum of its proper divisors (160031).

540385 is a wasteful number, since it uses less digits than its factorization.

540385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 540385 is about 735.1088354795. The cubic root of 540385 is about 81.4518766927.

The spelling of 540385 in words is "five hundred forty thousand, three hundred eighty-five".