42104423 has 4 divisors (see below), whose sum is σ = 42117600. Its totient is φ = 42091248.

The previous prime is 42104389. The next prime is 42104431. The reversal of 42104423 is 32440124.

42104423 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42104423 - 2²⁴ = 25327207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42104395 and 42104404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586 + ... + 9312.

It is an arithmetic number, because the mean of its divisors is an integer number (10529400).

Almost surely, 2^42104423 is an apocalyptic number.

42104423 is a deficient number, since it is larger than the sum of its proper divisors (13177).

42104423 is an equidigital number, since it uses as much as digits as its factorization.

42104423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13176.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 42104423 is about 6488.7921063939. The cubic root of 42104423 is about 347.8905031604.

Adding to 42104423 its reverse (32440124), we get a palindrome (74544547).

The spelling of 42104423 in words is "forty-two million, one hundred four thousand, four hundred twenty-three".