28342286 has 24 divisors (see below), whose sum is σ = 49838976. Its totient is φ = 12052320.

The previous prime is 28342283. The next prime is 28342291. The reversal of 28342286 is 68224382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342283) 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 11 ways as a sum of consecutive naturals, for example, 12371 + ... + 14481.

It is an arithmetic number, because the mean of its divisors is an integer number (2076624).

Almost surely, 2^28342286 is an apocalyptic number.

28342286 is a deficient number, since it is larger than the sum of its proper divisors (21496690).

28342286 is a wasteful number, since it uses less digits than its factorization.

28342286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2257 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 28342286 is about 5323.7473644041. The cubic root of 28342286 is about 304.8912485163.

The spelling of 28342286 in words is "twenty-eight million, three hundred forty-two thousand, two hundred eighty-six".