28357282 has 8 divisors (see below), whose sum is σ = 43048656. Its totient is φ = 14007732.

The previous prime is 28357267. The next prime is 28357289. The reversal of 28357282 is 28275382.

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

It is not an unprimeable number, because it can be changed into a prime (28357289) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 85248 + ... + 85579.

It is an arithmetic number, because the mean of its divisors is an integer number (5381082).

Almost surely, 2^28357282 is an apocalyptic number.

28357282 is a deficient number, since it is larger than the sum of its proper divisors (14691374).

28357282 is a wasteful number, since it uses less digits than its factorization.

28357282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170912.

The product of its digits is 53760, while the sum is 37.

The square root of 28357282 is about 5325.1555845815. The cubic root of 28357282 is about 304.9450120344.

The spelling of 28357282 in words is "twenty-eight million, three hundred fifty-seven thousand, two hundred eighty-two".