540388 has 12 divisors (see below), whose sum is σ = 963900. Its totient is φ = 264992.

The previous prime is 540383. The next prime is 540389. The reversal of 540388 is 883045.

540388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 451584 + 88804 = 672^2 + 298^2 .

It is an Ulam number.

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 3 ways as a sum of consecutive naturals, for example, 1063 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (80325).

2⁵⁴⁰³⁸⁸ is an apocalyptic number.

It is an amenable number.

540388 is a deficient number, since it is larger than the sum of its proper divisors (423512).

540388 is a wasteful number, since it uses less digits than its factorization.

540388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606 (or 2604 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 540388 is about 735.1108759908. The cubic root of 540388 is about 81.4520274217.

The spelling of 540388 in words is "five hundred forty thousand, three hundred eighty-eight".