42445023 has 8 divisors (see below), whose sum is σ = 56633136. Its totient is φ = 28276800.

The previous prime is 42445021. The next prime is 42445027. The reversal of 42445023 is 32054424.

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

It is not a de Polignac number, because 42445023 - 2¹ = 42445021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42444984 and 42445002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42445021) 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, 1053 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (7079142).

Almost surely, 2^42445023 is an apocalyptic number.

42445023 is a deficient number, since it is larger than the sum of its proper divisors (14188113).

42445023 is a wasteful number, since it uses less digits than its factorization.

42445023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9945.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42445023 is about 6514.9844972954. The cubic root of 42445023 is about 348.8260614409.

Adding to 42445023 its reverse (32054424), we get a palindrome (74499447).

The spelling of 42445023 in words is "forty-two million, four hundred forty-five thousand, twenty-three".