28179528 has 64 divisors (see below), whose sum is σ = 76440000. Its totient is φ = 8605440.

The previous prime is 28179511. The next prime is 28179551. The reversal of 28179528 is 82597182.

It is a self number, because there is not a number n which added to its sum of digits gives 28179528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56223 + ... + 56721.

It is an arithmetic number, because the mean of its divisors is an integer number (1194375).

Almost surely, 2^28179528 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 28179528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38220000).

28179528 is an abundant number, since it is smaller than the sum of its proper divisors (48260472).

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

28179528 is a wasteful number, since it uses less digits than its factorization.

28179528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702 (or 698 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 28179528 is about 5308.4393186698. The cubic root of 28179528 is about 304.3065064213.

The spelling of 28179528 in words is "twenty-eight million, one hundred seventy-nine thousand, five hundred twenty-eight".