42104023 has 4 divisors (see below), whose sum is σ = 45342808. Its totient is φ = 38865240.

The previous prime is 42104017. The next prime is 42104033. The reversal of 42104023 is 32040124.

42104023 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.

It is a cyclic number.

It is not a de Polignac number, because 42104023 - 2⁹ = 42103511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42103988 and 42104006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42104003) 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, 1619373 + ... + 1619398.

It is an arithmetic number, because the mean of its divisors is an integer number (11335702).

Almost surely, 2^42104023 is an apocalyptic number.

42104023 is a deficient number, since it is larger than the sum of its proper divisors (3238785).

42104023 is a wasteful number, since it uses less digits than its factorization.

42104023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238784.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42104023 is about 6488.7612839432. The cubic root of 42104023 is about 347.8894014817.

Adding to 42104023 its reverse (32040124), we get a palindrome (74144147).

The spelling of 42104023 in words is "forty-two million, one hundred four thousand, twenty-three".