4447944 has 48 divisors (see below), whose sum is σ = 12152400. Its totient is φ = 1469664.

The previous prime is 4447943. The next prime is 4447987. The reversal of 4447944 is 4497444.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4447899 and 4447908.

It is not an unprimeable number, because it can be changed into a prime (4447943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11547 + ... + 11925.

It is an arithmetic number, because the mean of its divisors is an integer number (253175).

Almost surely, 2^4447944 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 4447944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6076200).

4447944 is an abundant number, since it is smaller than the sum of its proper divisors (7704456).

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

4447944 is a wasteful number, since it uses less digits than its factorization.

4447944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 547 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 4447944 is about 2109.0149359357. The cubic root of 4447944 is about 164.4572801982.

The spelling of 4447944 in words is "four million, four hundred forty-seven thousand, nine hundred forty-four".