540140 has 24 divisors (see below), whose sum is σ = 1149120. Its totient is φ = 213248.

The previous prime is 540139. The next prime is 540149. The reversal of 540140 is 41045.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540140.

It is not an unprimeable number, because it can be changed into a prime (540149) 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 7 ways as a sum of consecutive naturals, for example, 2141 + ... + 2379.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2⁵⁴⁰¹⁴⁰ is an apocalyptic number.

It is an amenable number.

540140 is an abundant number, since it is smaller than the sum of its proper divisors (608980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

540140 is a wasteful number, since it uses less digits than its factorization.

540140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 540140 is about 734.9421745961. The cubic root of 540140 is about 81.4395652688.

Adding to 540140 its reverse (41045), we get a palindrome (581185).

The spelling of 540140 in words is "five hundred forty thousand, one hundred forty".