5705728 has 52 divisors (see below), whose sum is σ = 13105600. Its totient is φ = 2433024.

The previous prime is 5705699. The next prime is 5705731. The reversal of 5705728 is 8275075.

It is a junction number, because it is equal to n+sod(n) for n = 5705693 and 5705702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28573 + ... + 28771.

Almost surely, 2^5705728 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 5705728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6552800).

5705728 is an abundant number, since it is smaller than the sum of its proper divisors (7399872).

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

5705728 is an equidigital number, since it uses as much as digits as its factorization.

5705728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 5705728 is about 2388.6665736348. Note that the first 3 decimals coincide. The cubic root of 5705728 is about 178.6914151010.

The spelling of 5705728 in words is "five million, seven hundred five thousand, seven hundred twenty-eight".