4444001320 has 64 divisors (see below), whose sum is σ = 10945549440. Its totient is φ = 1610438400.

The previous prime is 4444001279. The next prime is 4444001323. The reversal of 4444001320 is 231004444.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4444001291 and 4444001300.

It is not an unprimeable number, because it can be changed into a prime (4444001323) 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, 111685 + ... + 146155.

It is an arithmetic number, because the mean of its divisors is an integer number (171024210).

Almost surely, 2^4444001320 is an apocalyptic number.

4444001320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4444001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5472774720).

4444001320 is an abundant number, since it is smaller than the sum of its proper divisors (6501548120).

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

4444001320 is a wasteful number, since it uses less digits than its factorization.

4444001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34786 (or 34782 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 4444001320 is about 66663.3431504901. The cubic root of 4444001320 is about 1644.0867391281.

Adding to 4444001320 its reverse (231004444), we get a palindrome (4675005764).

The spelling of 4444001320 in words is "four billion, four hundred forty-four million, one thousand, three hundred twenty".