5128398 has 48 divisors (see below), whose sum is σ = 12355200. Its totient is φ = 1524240.

The previous prime is 5128393. The next prime is 5128399. The reversal of 5128398 is 8938215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11463 + ... + 11901.

It is an arithmetic number, because the mean of its divisors is an integer number (257400).

Almost surely, 2^5128398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5128398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6177600).

5128398 is an abundant number, since it is smaller than the sum of its proper divisors (7226802).

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

5128398 is a wasteful number, since it uses less digits than its factorization.

5128398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 514 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 5128398 is about 2264.5966528280. The cubic root of 5128398 is about 172.4489578031.

The spelling of 5128398 in words is "five million, one hundred twenty-eight thousand, three hundred ninety-eight".