5390281728 has 220 divisors, whose sum is σ = 17338090000. Its totient is φ = 1658216448.

The previous prime is 5390281667. The next prime is 5390281739. The reversal of 5390281728 is 8271820935.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1075773 + ... + 1080771.

It is an arithmetic number, because the mean of its divisors is an integer number (78809500).

Almost surely, 2^5390281728 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 5390281728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8669045000).

5390281728 is an abundant number, since it is smaller than the sum of its proper divisors (11947808272).

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

5390281728 is a wasteful number, since it uses less digits than its factorization.

5390281728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5017 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 5390281728 is about 73418.5380404704. The cubic root of 5390281728 is about 1753.3575516838.

The spelling of 5390281728 in words is "five billion, three hundred ninety million, two hundred eighty-one thousand, seven hundred twenty-eight".