28182732 has 24 divisors (see below), whose sum is σ = 66839472. Its totient is φ = 9240000.

The previous prime is 28182727. The next prime is 28182743. The reversal of 28182732 is 23728182.

It is a junction number, because it is equal to n+sod(n) for n = 28182693 and 28182702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18519 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (2784978).

Almost surely, 2^28182732 is an apocalyptic number.

It is an amenable number.

28182732 is an abundant number, since it is smaller than the sum of its proper divisors (38656740).

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

28182732 is a wasteful number, since it uses less digits than its factorization.

28182732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38569 (or 38567 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 28182732 is about 5308.7410937057. The cubic root of 28182732 is about 304.3180391564.

The spelling of 28182732 in words is "twenty-eight million, one hundred eighty-two thousand, seven hundred thirty-two".