28192528 has 120 divisors (see below), whose sum is σ = 72481472. Its totient is φ = 10340352.

The previous prime is 28192519. The next prime is 28192537. The reversal of 28192528 is 82529182.

It is an interprime number because it is at equal distance from previous prime (28192519) and next prime (28192537).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 420751 + ... + 420817.

Almost surely, 2^28192528 is an apocalyptic number.

28192528 is a gapful number since it is divisible by the number (28) 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 28192528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36240736).

28192528 is an abundant number, since it is smaller than the sum of its proper divisors (44288944).

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

28192528 is a wasteful number, since it uses less digits than its factorization.

28192528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 106 counting only the distinct ones).

The product of its digits is 23040, while the sum is 37.

The square root of 28192528 is about 5309.6636428309. The cubic root of 28192528 is about 304.3532942454.

The spelling of 28192528 in words is "twenty-eight million, one hundred ninety-two thousand, five hundred twenty-eight".