5445384320 has 128 divisors (see below), whose sum is σ = 13750611840. Its totient is φ = 2057887744.

The previous prime is 5445384319. The next prime is 5445384377. The reversal of 5445384320 is 234835445.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219532 + ... + 1223988.

It is an arithmetic number, because the mean of its divisors is an integer number (107426655).

Almost surely, 2^5445384320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5445384320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6875305920).

5445384320 is an abundant number, since it is smaller than the sum of its proper divisors (8305227520).

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

5445384320 is a wasteful number, since it uses less digits than its factorization.

5445384320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582 (or 4570 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

The square root of 5445384320 is about 73792.8473498618. The cubic root of 5445384320 is about 1759.3119211106.

The spelling of 5445384320 in words is "five billion, four hundred forty-five million, three hundred eighty-four thousand, three hundred twenty".