540423 has 24 divisors (see below), whose sum is σ = 873600. Its totient is φ = 319680.

The previous prime is 540391. The next prime is 540433. The reversal of 540423 is 324045.

It is a happy number.

540423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 540423 - 2⁵ = 540391 is a prime.

It is a cake number, because a cake can be divided into 540423 parts by 148 planar cuts.

It is a junction number, because it is equal to n+sod(n) for n = 540396 and 540405.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 3553 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (36400).

2⁵⁴⁰⁴²³ is an apocalyptic number.

540423 is a deficient number, since it is larger than the sum of its proper divisors (333177).

540423 is a wasteful number, since it uses less digits than its factorization.

540423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 540423 is about 735.1346815380. The cubic root of 540423 is about 81.4537858863.

Adding to 540423 its reverse (324045), we get a palindrome (864468).

It can be divided in two parts, 54042 and 3, that added together give a palindrome (54045).

The spelling of 540423 in words is "five hundred forty thousand, four hundred twenty-three".