5128128 has 84 divisors (see below), whose sum is σ = 15255240. Its totient is φ = 1645056.

The previous prime is 5128063. The next prime is 5128153. The reversal of 5128128 is 8218215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16551 + ... + 16857.

It is an arithmetic number, because the mean of its divisors is an integer number (181610).

Almost surely, 2^5128128 is an apocalyptic number.

5128128 is a gapful number since it is divisible by the number (58) 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 5128128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7627620).

5128128 is an abundant number, since it is smaller than the sum of its proper divisors (10127112).

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

5128128 is a wasteful number, since it uses less digits than its factorization.

5128128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 341 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 5128128 is about 2264.5370387786. The cubic root of 5128128 is about 172.4459313846.

The spelling of 5128128 in words is "five million, one hundred twenty-eight thousand, one hundred twenty-eight".