5239728 has 100 divisors (see below), whose sum is σ = 16384368. Its totient is φ = 1607040.

The previous prime is 5239673. The next prime is 5239753. The reversal of 5239728 is 8279325.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 5⁸ + 2² + 3⁵ + 9⁷ + 7³ + 2¹⁶ + 8 .

It is a junction number, because it is equal to n+sod(n) for n = 5239692 and 5239701.

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, 16693 + ... + 17003.

Almost surely, 2^5239728 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 5239728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8192184).

5239728 is an abundant number, since it is smaller than the sum of its proper divisors (11144640).

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

5239728 is a wasteful number, since it uses less digits than its factorization.

5239728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 329 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 5239728 is about 2289.0452158051. The cubic root of 5239728 is about 173.6879066634.

It can be divided in two parts, 52397 and 28, that added together give a palindrome (52425).

The spelling of 5239728 in words is "five million, two hundred thirty-nine thousand, seven hundred twenty-eight".