442717643684 has 24 divisors (see below), whose sum is σ = 789058324320. Its totient is φ = 217283560704.

The previous prime is 442717643663. The next prime is 442717643689. The reversal of 442717643684 is 486346717244.

It is a super-2 number, since 2×442717643684² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442717643689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234874 + ... + 1552529.

It is an arithmetic number, because the mean of its divisors is an integer number (32877430180).

Almost surely, 2^442717643684 is an apocalyptic number.

It is an amenable number.

442717643684 is a deficient number, since it is larger than the sum of its proper divisors (346340680636).

442717643684 is a wasteful number, since it uses less digits than its factorization.

442717643684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788139 (or 2788137 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 56.

The spelling of 442717643684 in words is "four hundred forty-two billion, seven hundred seventeen million, six hundred forty-three thousand, six hundred eighty-four".