442814797 has 4 divisors (see below), whose sum is σ = 447379996. Its totient is φ = 438249600.

The previous prime is 442814773. The next prime is 442814803. The reversal of 442814797 is 797418244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 185885956 + 256928841 = 13634^2 + 16029^2 .

It is a cyclic number.

It is not a de Polignac number, because 442814797 - 2²³ = 434426189 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 (442814737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282454 + ... + 2282647.

It is an arithmetic number, because the mean of its divisors is an integer number (111844999).

Almost surely, 2^442814797 is an apocalyptic number.

It is an amenable number.

442814797 is a deficient number, since it is larger than the sum of its proper divisors (4565199).

442814797 is an equidigital number, since it uses as much as digits as its factorization.

442814797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565198.

The product of its digits is 451584, while the sum is 46.

The square root of 442814797 is about 21043.1650898813. The cubic root of 442814797 is about 762.2089456925.

It can be divided in two parts, 4428147 and 97, that added together give a palindrome (4428244).

The spelling of 442814797 in words is "four hundred forty-two million, eight hundred fourteen thousand, seven hundred ninety-seven".