28396032 has 160 divisors (see below), whose sum is σ = 91660800. Its totient is φ = 7630848.

The previous prime is 28396019. The next prime is 28396033. The reversal of 28396032 is 23069382.

It is a junction number, because it is equal to n+sod(n) for n = 28395984 and 28396002.

It is not an unprimeable number, because it can be changed into a prime (28396033) 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, 204219 + ... + 204357.

It is an arithmetic number, because the mean of its divisors is an integer number (572880).

Almost surely, 2^28396032 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 28396032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45830400).

28396032 is an abundant number, since it is smaller than the sum of its proper divisors (63264768).

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

28396032 is a wasteful number, since it uses less digits than its factorization.

28396032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 28396032 is about 5328.7927338188. The cubic root of 28396032 is about 305.0838504565.

The spelling of 28396032 in words is "twenty-eight million, three hundred ninety-six thousand, thirty-two".