4443400038 has 96 divisors (see below), whose sum is σ = 11582952192. Its totient is φ = 1103889600.

The previous prime is 4443400037. The next prime is 4443400043. The reversal of 4443400038 is 8300043444.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4443399978 and 4443400014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4443400033) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235308 + ... + 253488.

It is an arithmetic number, because the mean of its divisors is an integer number (120655752).

Almost surely, 2^4443400038 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4443400038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5791476096).

4443400038 is an abundant number, since it is smaller than the sum of its proper divisors (7139552154).

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

4443400038 is a wasteful number, since it uses less digits than its factorization.

4443400038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18250 (or 18227 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 4443400038 is about 66658.8331581044. The cubic root of 4443400038 is about 1644.0125864086.

The spelling of 4443400038 in words is "four billion, four hundred forty-three million, four hundred thousand, thirty-eight".