540387 has 12 divisors (see below), whose sum is σ = 789880. Its totient is φ = 355968.

The previous prime is 540383. The next prime is 540389. The reversal of 540387 is 783045.

It is not a de Polignac number, because 540387 - 2² = 540383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540387.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 564 + ... + 1182.

2⁵⁴⁰³⁸⁷ is an apocalyptic number.

540387 is a deficient number, since it is larger than the sum of its proper divisors (249493).

540387 is a wasteful number, since it uses less digits than its factorization.

540387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 540387 is about 735.1101958210. The cubic root of 540387 is about 81.4519771788.

It can be divided in two parts, 54038 and 7, that added together give a palindrome (54045).

The spelling of 540387 in words is "five hundred forty thousand, three hundred eighty-seven".