4445780208 has 80 divisors (see below), whose sum is σ = 12119164800. Its totient is φ = 1400474880.

The previous prime is 4445780201. The next prime is 4445780231. The reversal of 4445780208 is 8020875444.

It is a self number, because there is not a number n which added to its sum of digits gives 4445780208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4445780201) 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, 378163 + ... + 389741.

It is an arithmetic number, because the mean of its divisors is an integer number (151489560).

Almost surely, 2^4445780208 is an apocalyptic number.

4445780208 is a gapful number since it is divisible by the number (48) 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 4445780208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6059582400).

4445780208 is an abundant number, since it is smaller than the sum of its proper divisors (7673384592).

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

4445780208 is a wasteful number, since it uses less digits than its factorization.

4445780208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12030 (or 12024 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 4445780208 is about 66676.6841407099. The cubic root of 4445780208 is about 1644.3060801988.

The spelling of 4445780208 in words is "four billion, four hundred forty-five million, seven hundred eighty thousand, two hundred eight".