4444646444 has 24 divisors (see below), whose sum is σ = 8894638368. Its totient is φ = 1903703040.

The previous prime is 4444646417. The next prime is 4444646449. The reversal of 4444646444 is 4446464444.

It is a junction number, because it is equal to n+sod(n) for n = 4444646395 and 4444646404.

It is not an unprimeable number, because it can be changed into a prime (4444646449) 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, 524 + ... + 94284.

It is an arithmetic number, because the mean of its divisors is an integer number (370609932).

Almost surely, 2^4444646444 is an apocalyptic number.

It is an amenable number.

4444646444 is an abundant number, since it is smaller than the sum of its proper divisors (4449991924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4444646444 is a wasteful number, since it uses less digits than its factorization.

4444646444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95465 (or 95463 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 44.

The square root of 4444646444 is about 66668.1816461196. The cubic root of 4444646444 is about 1644.1662911968.

The spelling of 4444646444 in words is "four billion, four hundred forty-four million, six hundred forty-six thousand, four hundred forty-four".