42044123 has 8 divisors (see below), whose sum is σ = 46099200. Its totient is φ = 38027880.

The previous prime is 42044117. The next prime is 42044159. The reversal of 42044123 is 32144024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42044123 - 2⁶ = 42044059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42044095 and 42044104.

It is not an unprimeable number, because it can be changed into a prime (42044183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7415 + ... + 11792.

It is an arithmetic number, because the mean of its divisors is an integer number (5762400).

Almost surely, 2^42044123 is an apocalyptic number.

42044123 is a deficient number, since it is larger than the sum of its proper divisors (4055077).

42044123 is a wasteful number, since it uses less digits than its factorization.

42044123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19417.

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

The square root of 42044123 is about 6484.1439681734. The cubic root of 42044123 is about 347.7243462716.

Adding to 42044123 its reverse (32144024), we get a palindrome (74188147).

Subtracting from 42044123 its reverse (32144024), we obtain a palindrome (9900099).

The spelling of 42044123 in words is "forty-two million, forty-four thousand, one hundred twenty-three".