540427 has 4 divisors (see below), whose sum is σ = 542656. Its totient is φ = 538200.

The previous prime is 540391. The next prime is 540433. The reversal of 540427 is 724045.

540427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 540427 - 2¹⁹ = 16139 is a prime.

It is a super-2 number, since 2×540427² = 584122684658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540398 and 540407.

It is not an unprimeable number, because it can be changed into a prime (540437) 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, 699 + ... + 1252.

It is an arithmetic number, because the mean of its divisors is an integer number (135664).

2⁵⁴⁰⁴²⁷ is an apocalyptic number.

540427 is a deficient number, since it is larger than the sum of its proper divisors (2229).

540427 is a wasteful number, since it uses less digits than its factorization.

540427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 540427 is about 735.1374021229. The cubic root of 540427 is about 81.4539868488.

The spelling of 540427 in words is "five hundred forty thousand, four hundred twenty-seven".