442523023 has 8 divisors (see below), whose sum is σ = 452563200. Its totient is φ = 432545568.

The previous prime is 442523009. The next prime is 442523027. The reversal of 442523023 is 320325244.

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

It is a cyclic number.

It is not a de Polignac number, because 442523023 - 2¹⁷ = 442391951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442523027) 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, 1263 + ... + 29776.

It is an arithmetic number, because the mean of its divisors is an integer number (56570400).

Almost surely, 2^442523023 is an apocalyptic number.

442523023 is a deficient number, since it is larger than the sum of its proper divisors (10040177).

442523023 is a wasteful number, since it uses less digits than its factorization.

442523023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31361.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 442523023 is about 21036.2311976266. The cubic root of 442523023 is about 762.0415005079.

Adding to 442523023 its reverse (320325244), we get a palindrome (762848267).

The spelling of 442523023 in words is "four hundred forty-two million, five hundred twenty-three thousand, twenty-three".