5128998 has 32 divisors (see below), whose sum is σ = 12130560. Its totient is φ = 1414560.

The previous prime is 5128987. The next prime is 5128999. The reversal of 5128998 is 8998215.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128999) 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, 888 + ... + 3323.

It is an arithmetic number, because the mean of its divisors is an integer number (379080).

Almost surely, 2^5128998 is an apocalyptic number.

5128998 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5128998 is an abundant number, since it is smaller than the sum of its proper divisors (7001562).

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

5128998 is a wasteful number, since it uses less digits than its factorization.

5128998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252.

The product of its digits is 51840, while the sum is 42.

The square root of 5128998 is about 2264.7291228754. The cubic root of 5128998 is about 172.4556827973.

The spelling of 5128998 in words is "five million, one hundred twenty-eight thousand, nine hundred ninety-eight".