542423042 has 12 divisors (see below), whose sum is σ = 946473030. Its totient is φ = 232466976.

The previous prime is 542423033. The next prime is 542423081. The reversal of 542423042 is 240324245.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 283888801 + 258534241 = 16849^2 + 16079^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2767367 + ... + 2767562.

Almost surely, 2^542423042 is an apocalyptic number.

542423042 is a deficient number, since it is larger than the sum of its proper divisors (404049988).

542423042 is a wasteful number, since it uses less digits than its factorization.

542423042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5534945 (or 5534938 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 542423042 is about 23289.9772863779. The cubic root of 542423042 is about 815.5414581022.

Adding to 542423042 its reverse (240324245), we get a palindrome (782747287).

The spelling of 542423042 in words is "five hundred forty-two million, four hundred twenty-three thousand, forty-two".