4443660444 has 48 divisors (see below), whose sum is σ = 10874400768. Its totient is φ = 1409610048.

The previous prime is 4443660439. The next prime is 4443660451. The reversal of 4443660444 is 4440663444.

It is a super-2 number, since 2×4443660444² = 39492236283140554272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13509 + ... + 95235.

It is an arithmetic number, because the mean of its divisors is an integer number (226550016).

Almost surely, 2^4443660444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4443660444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5437200384).

4443660444 is an abundant number, since it is smaller than the sum of its proper divisors (6430740324).

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

4443660444 is a wasteful number, since it uses less digits than its factorization.

4443660444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81954 (or 81952 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 39.

The square root of 4443660444 is about 66660.7864040022. The cubic root of 4443660444 is about 1644.0447016338.

The spelling of 4443660444 in words is "four billion, four hundred forty-three million, six hundred sixty thousand, four hundred forty-four".