442674813 has 16 divisors (see below), whose sum is σ = 703881216. Its totient is φ = 241958640.

The previous prime is 442674803. The next prime is 442674851. The reversal of 442674813 is 318476244.

It is not a de Polignac number, because 442674813 - 2⁴ = 442674797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442674803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 457773 + ... + 458738.

It is an arithmetic number, because the mean of its divisors is an integer number (43992576).

Almost surely, 2^442674813 is an apocalyptic number.

It is an amenable number.

442674813 is a deficient number, since it is larger than the sum of its proper divisors (261206403).

442674813 is a wasteful number, since it uses less digits than its factorization.

442674813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916544.

The product of its digits is 129024, while the sum is 39.

The square root of 442674813 is about 21039.8387113590. The cubic root of 442674813 is about 762.1286199349.

The spelling of 442674813 in words is "four hundred forty-two million, six hundred seventy-four thousand, eight hundred thirteen".