442304005 has 24 divisors (see below), whose sum is σ = 628290936. Its totient is φ = 296926080.

The previous prime is 442304003. The next prime is 442304029. The reversal of 442304005 is 500403244.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9622404 + 432681601 = 3102^2 + 20801^2 .

It is not a de Polignac number, because 442304005 - 2¹ = 442304003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442304003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20254 + ... + 35983.

It is an arithmetic number, because the mean of its divisors is an integer number (26178789).

Almost surely, 2^442304005 is an apocalyptic number.

It is an amenable number.

442304005 is a deficient number, since it is larger than the sum of its proper divisors (185986931).

442304005 is a wasteful number, since it uses less digits than its factorization.

442304005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56277 (or 56266 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 442304005 is about 21031.0248204884. The cubic root of 442304005 is about 761.9157606488.

Adding to 442304005 its reverse (500403244), we get a palindrome (942707249).

The spelling of 442304005 in words is "four hundred forty-two million, three hundred four thousand, five".