540022 has 16 divisors (see below), whose sum is σ = 980640. Its totient is φ = 217728.

The previous prime is 539993. The next prime is 540041. The reversal of 540022 is 220045.

It is a happy number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 539984 and 540011.

It is a congruent number.

It is an unprimeable number.

540022 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 897 + ... + 1372.

It is an arithmetic number, because the mean of its divisors is an integer number (61290).

2⁵⁴⁰⁰²² is an apocalyptic number.

540022 is a deficient number, since it is larger than the sum of its proper divisors (440618).

540022 is a wasteful number, since it uses less digits than its factorization.

540022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 540022 is about 734.8618917865. The cubic root of 540022 is about 81.4336343567.

Adding to 540022 its reverse (220045), we get a palindrome (760067).

The spelling of 540022 in words is "five hundred forty thousand, twenty-two".