542423 has 4 divisors (see below), whose sum is σ = 619920. Its totient is φ = 464928.

The previous prime is 542401. The next prime is 542441. The reversal of 542423 is 324245.

542423 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, and also an emirpimes, since its reverse is a distinct semiprime: 324245 = 5 ⋅64849.

It is a cyclic number.

It is not a de Polignac number, because 542423 - 2⁸ = 542167 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 542395 and 542404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542483) 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, 38738 + ... + 38751.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

2⁵⁴²⁴²³ is an apocalyptic number.

542423 is a deficient number, since it is larger than the sum of its proper divisors (77497).

542423 is an equidigital number, since it uses as much as digits as its factorization.

542423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77496.

The product of its digits is 960, while the sum is 20.

The square root of 542423 is about 736.4937202719. The cubic root of 542423 is about 81.5541437053.

Adding to 542423 its reverse (324245), we get a palindrome (866668).

It can be divided in two parts, 54242 and 3, that added together give a palindrome (54245).

The spelling of 542423 in words is "five hundred forty-two thousand, four hundred twenty-three".