5128992 has 72 divisors (see below), whose sum is σ = 15921360. Its totient is φ = 1553280.

The previous prime is 5128987. The next prime is 5128999. The reversal of 5128992 is 2998215.

It is a tau number, because it is divible by the number of its divisors (72).

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

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 11 ways as a sum of consecutive naturals, for example, 2359 + ... + 3977.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

Almost surely, 2^5128992 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 5128992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7960680).

5128992 is an abundant number, since it is smaller than the sum of its proper divisors (10792368).

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

5128992 is a wasteful number, since it uses less digits than its factorization.

5128992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646 (or 1635 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 5128992 is about 2264.7277982133. The cubic root of 5128992 is about 172.4556155499.

The spelling of 5128992 in words is "five million, one hundred twenty-eight thousand, nine hundred ninety-two".