4445775444 has 96 divisors (see below), whose sum is σ = 11447654400. Its totient is φ = 1331688960.

The previous prime is 4445775443. The next prime is 4445775539.

4445775444 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4445775393 and 4445775402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445775443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6182917 + ... + 6183635.

It is an arithmetic number, because the mean of its divisors is an integer number (119246400).

Almost surely, 2^4445775444 is an apocalyptic number.

4445775444 is a gapful number since it is divisible by the number (44) 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 4445775444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5723827200).

4445775444 is an abundant number, since it is smaller than the sum of its proper divisors (7001878956).

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

4445775444 is a wasteful number, since it uses less digits than its factorization.

4445775444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213 (or 1211 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 48.

The square root of 4445775444 is about 66676.6484160684. The cubic root of 4445775444 is about 1644.3054928645.

The spelling of 4445775444 in words is "four billion, four hundred forty-five million, seven hundred seventy-five thousand, four hundred forty-four".