8424868444 has 24 divisors (see below), whose sum is σ = 15421156128. Its totient is φ = 4019695680.

The previous prime is 8424868433. The next prime is 8424868457. The reversal of 8424868444 is 4448684248.

It is a super-2 number, since 2×8424868444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8424868391 and 8424868400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70027 + ... + 147490.

It is an arithmetic number, because the mean of its divisors is an integer number (642548172).

Almost surely, 2^8424868444 is an apocalyptic number.

It is an amenable number.

8424868444 is a deficient number, since it is larger than the sum of its proper divisors (6996287684).

8424868444 is a wasteful number, since it uses less digits than its factorization.

8424868444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217965 (or 217963 counting only the distinct ones).

The product of its digits is 6291456, while the sum is 52.

The square root of 8424868444 is about 91787.0821194355. The cubic root of 8424868444 is about 2034.7967845177.

The spelling of 8424868444 in words is "eight billion, four hundred twenty-four million, eight hundred sixty-eight thousand, four hundred forty-four".