28000382 has 8 divisors (see below), whose sum is σ = 42506856. Its totient is φ = 13831432.

The previous prime is 28000381. The next prime is 28000393. The reversal of 28000382 is 28300082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28000381) 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 3 ways as a sum of consecutive naturals, for example, 84173 + ... + 84504.

It is an arithmetic number, because the mean of its divisors is an integer number (5313357).

Almost surely, 2^28000382 is an apocalyptic number.

28000382 is a deficient number, since it is larger than the sum of its proper divisors (14506474).

28000382 is a wasteful number, since it uses less digits than its factorization.

28000382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168762.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 28000382 is about 5291.5387176132. The cubic root of 28000382 is about 303.6602781063.

It can be divided in two parts, 28000 and 382, that added together give a palindrome (28382).

The spelling of 28000382 in words is "twenty-eight million, three hundred eighty-two", and thus it is an aban number.