542422 has 4 divisors (see below), whose sum is σ = 813636. Its totient is φ = 271210.

The previous prime is 542401. The next prime is 542441. The reversal of 542422 is 224245.

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

It is a self number, because there is not a number n which added to its sum of digits gives 542422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135604 + ... + 135607.

It is an arithmetic number, because the mean of its divisors is an integer number (203409).

2⁵⁴²⁴²² is an apocalyptic number.

542422 is a deficient number, since it is larger than the sum of its proper divisors (271214).

542422 is a wasteful number, since it uses less digits than its factorization.

542422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271213.

The product of its digits is 640, while the sum is 19.

The square root of 542422 is about 736.4930413792. The cubic root of 542422 is about 81.5540935881.

Adding to 542422 its reverse (224245), we get a palindrome (766667).

The spelling of 542422 in words is "five hundred forty-two thousand, four hundred twenty-two".