542442323 has 4 divisors (see below), whose sum is σ = 542505408. Its totient is φ = 542379240.

The previous prime is 542442301. The next prime is 542442331. The reversal of 542442323 is 323244245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542442323 - 2⁸ = 542442067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542442023) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16136 + ... + 36677.

It is an arithmetic number, because the mean of its divisors is an integer number (135626352).

Almost surely, 2^542442323 is an apocalyptic number.

542442323 is a deficient number, since it is larger than the sum of its proper divisors (63085).

542442323 is a wasteful number, since it uses less digits than its factorization.

542442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63084.

The product of its digits is 23040, while the sum is 29.

The square root of 542442323 is about 23290.3912161217. The cubic root of 542442323 is about 815.5511210819.

Adding to 542442323 its reverse (323244245), we get a palindrome (865686568).

The spelling of 542442323 in words is "five hundred forty-two million, four hundred forty-two thousand, three hundred twenty-three".