5728040 has 32 divisors (see below), whose sum is σ = 13041000. Its totient is φ = 2264064.

The previous prime is 5728027. The next prime is 5728043. The reversal of 5728040 is 408275.

It can be written as a sum of positive squares in 4 ways, for example, as 5189284 + 538756 = 2278^2 + 734^2 .

It is not an unprimeable number, because it can be changed into a prime (5728043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 4364.

Almost surely, 2^5728040 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 5728040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6520500).

5728040 is an abundant number, since it is smaller than the sum of its proper divisors (7312960).

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

5728040 is a wasteful number, since it uses less digits than its factorization.

5728040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1709 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 5728040 is about 2393.3324048280. The cubic root of 5728040 is about 178.9240338055.

The spelling of 5728040 in words is "five million, seven hundred twenty-eight thousand, forty".