442112023 has 4 divisors (see below), whose sum is σ = 442167880. Its totient is φ = 442056168.

The previous prime is 442111997. The next prime is 442112059. The reversal of 442112023 is 320211244.

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 442112023 - 2¹⁷ = 441980951 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 (442112063) 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, 13608 + ... + 32701.

It is an arithmetic number, because the mean of its divisors is an integer number (110541970).

Almost surely, 2^442112023 is an apocalyptic number.

442112023 is a deficient number, since it is larger than the sum of its proper divisors (55857).

442112023 is an equidigital number, since it uses as much as digits as its factorization.

442112023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55856.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 442112023 is about 21026.4600682093. The cubic root of 442112023 is about 761.8055082143.

Adding to 442112023 its reverse (320211244), we get a palindrome (762323267).

The spelling of 442112023 in words is "four hundred forty-two million, one hundred twelve thousand, twenty-three".