5728445280 has 384 divisors, whose sum is σ = 21344601600. Its totient is φ = 1430784000.

The previous prime is 5728445237. The next prime is 5728445309. The reversal of 5728445280 is 825448275.

5728445280 is a `hidden beast` number, since 57 + 284 + 45 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8289735 + ... + 8290425.

It is an arithmetic number, because the mean of its divisors is an integer number (55584900).

Almost surely, 2^5728445280 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 5728445280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10672300800).

5728445280 is an abundant number, since it is smaller than the sum of its proper divisors (15616156320).

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

5728445280 is a wasteful number, since it uses less digits than its factorization.

5728445280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 45.

The square root of 5728445280 is about 75686.4933789378. The cubic root of 5728445280 is about 1789.2825355153.

The spelling of 5728445280 in words is "five billion, seven hundred twenty-eight million, four hundred forty-five thousand, two hundred eighty".