4383438644 has 48 divisors (see below), whose sum is σ = 8933234688. Its totient is φ = 1863587328.

The previous prime is 4383438641. The next prime is 4383438667. The reversal of 4383438644 is 4468343834.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4383438641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11204 + ... + 94299.

It is an arithmetic number, because the mean of its divisors is an integer number (186109056).

Almost surely, 2^4383438644 is an apocalyptic number.

It is an amenable number.

4383438644 is an abundant number, since it is smaller than the sum of its proper divisors (4549796044).

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

4383438644 is a wasteful number, since it uses less digits than its factorization.

4383438644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105584 (or 105582 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 47.

The square root of 4383438644 is about 66207.5421987556. The cubic root of 4383438644 is about 1636.5840364528.

The spelling of 4383438644 in words is "four billion, three hundred eighty-three million, four hundred thirty-eight thousand, six hundred forty-four".