28339048080 has 360 divisors, whose sum is σ = 111018843000. Its totient is φ = 6459457536.

The previous prime is 28339048061. The next prime is 28339048109. The reversal of 28339048080 is 8084093382.

28339048080 is a `hidden beast` number, since 2 + 8 + 3 + 3 + 90 + 480 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10433396736 + 17905651344 = 102144^2 + 133812^2 .

It is a tau number, because it is divible by the number of its divisors (360).

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15839826 + ... + 15841614.

It is an arithmetic number, because the mean of its divisors is an integer number (308385675).

Almost surely, 2^28339048080 is an apocalyptic number.

28339048080 is a gapful number since it is divisible by the number (20) 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 28339048080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55509421500).

28339048080 is an abundant number, since it is smaller than the sum of its proper divisors (82679794920).

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

28339048080 is a wasteful number, since it uses less digits than its factorization.

28339048080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 28339048080 in words is "twenty-eight billion, three hundred thirty-nine million, forty-eight thousand, eighty".