5128816 has 80 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 1900800.

The previous prime is 5128789. The next prime is 5128817. The reversal of 5128816 is 6188215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28246 + ... + 28426.

Almost surely, 2^5128816 is an apocalyptic number.

5128816 is a gapful number since it is divisible by the number (56) 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 5128816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499584).

5128816 is an abundant number, since it is smaller than the sum of its proper divisors (7870352).

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

5128816 is a wasteful number, since it uses less digits than its factorization.

5128816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 224 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 5128816 is about 2264.6889411131. The cubic root of 5128816 is about 172.4536429378.

It can be divided in two parts, 5 and 128816, that added together give a palindrome (128821).

The spelling of 5128816 in words is "five million, one hundred twenty-eight thousand, eight hundred sixteen".