442004424442213 has 4 divisors (see below), whose sum is σ = 442137598420960. Its totient is φ = 441871250463468.

The previous prime is 442004424442183. The next prime is 442004424442267. The reversal of 442004424442213 is 312244424400244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442004424442213 - 2²⁵ = 442004390887781 is a prime.

It is a super-2 number, since 2×442004424442213² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442004424442513) 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, 66586984395 + ... + 66586991032.

It is an arithmetic number, because the mean of its divisors is an integer number (110534399605240).

Almost surely, 2^{442004424442213} is an apocalyptic number.

It is an amenable number.

442004424442213 is a deficient number, since it is larger than the sum of its proper divisors (133173978747).

442004424442213 is a wasteful number, since it uses less digits than its factorization.

442004424442213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133173978746.

The product of its (nonzero) digits is 786432, while the sum is 40.

Adding to 442004424442213 its reverse (312244424400244), we get a palindrome (754248848842457).

The spelling of 442004424442213 in words is "four hundred forty-two trillion, four billion, four hundred twenty-four million, four hundred forty-two thousand, two hundred thirteen".