6219448444 has 24 divisors (see below), whose sum is σ = 11877360768. Its totient is φ = 2826101040.

The previous prime is 6219448421. The next prime is 6219448447. The reversal of 6219448444 is 4448449126.

It is a super-2 number, since 2×6219448444² = 77363077895148042272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6219448394 and 6219448403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6219448447) 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, 124137 + ... + 166879.

It is an arithmetic number, because the mean of its divisors is an integer number (494890032).

Almost surely, 2^6219448444 is an apocalyptic number.

It is an amenable number.

6219448444 is a deficient number, since it is larger than the sum of its proper divisors (5657912324).

6219448444 is a wasteful number, since it uses less digits than its factorization.

6219448444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46065 (or 46063 counting only the distinct ones).

The product of its digits is 884736, while the sum is 46.

The square root of 6219448444 is about 78863.4797862737. The cubic root of 6219448444 is about 1839.0094349246.

The spelling of 6219448444 in words is "six billion, two hundred nineteen million, four hundred forty-eight thousand, four hundred forty-four".