28283532 has 24 divisors (see below), whose sum is σ = 68124672. Its totient is φ = 9123600.

The previous prime is 28283509. The next prime is 28283539. The reversal of 28283532 is 23538282.

It is a junction number, because it is equal to n+sod(n) for n = 28283493 and 28283502.

It is not an unprimeable number, because it can be changed into a prime (28283539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37644 + ... + 38387.

It is an arithmetic number, because the mean of its divisors is an integer number (2838528).

Almost surely, 2^28283532 is an apocalyptic number.

It is an amenable number.

28283532 is an abundant number, since it is smaller than the sum of its proper divisors (39841140).

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

28283532 is a wasteful number, since it uses less digits than its factorization.

28283532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76069 (or 76067 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 28283532 is about 5318.2263960836. The cubic root of 28283532 is about 304.6804213319.

The spelling of 28283532 in words is "twenty-eight million, two hundred eighty-three thousand, five hundred thirty-two".