540422 has 16 divisors (see below), whose sum is σ = 852720. Its totient is φ = 256608.

The previous prime is 540391. The next prime is 540433. The reversal of 540422 is 224045.

It is a self number, because there is not a number n which added to its sum of digits gives 540422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4904 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (53295).

2⁵⁴⁰⁴²² is an apocalyptic number.

540422 is a deficient number, since it is larger than the sum of its proper divisors (312298).

540422 is a wasteful number, since it uses less digits than its factorization.

540422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 540422 is about 735.1340013902. The cubic root of 540422 is about 81.4537356455.

Adding to 540422 its reverse (224045), we get a palindrome (764467).

The spelling of 540422 in words is "five hundred forty thousand, four hundred twenty-two".