28386122 has 8 divisors (see below), whose sum is σ = 43118400. Its totient is φ = 14013324.

The previous prime is 28386121. The next prime is 28386131. The reversal of 28386122 is 22168382.

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 (28386121) 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, 89672 + ... + 89987.

It is an arithmetic number, because the mean of its divisors is an integer number (5389800).

Almost surely, 2^28386122 is an apocalyptic number.

28386122 is a deficient number, since it is larger than the sum of its proper divisors (14732278).

28386122 is a wasteful number, since it uses less digits than its factorization.

28386122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179740.

The product of its digits is 9216, while the sum is 32.

The square root of 28386122 is about 5327.8627985338. The cubic root of 28386122 is about 305.0483556763.

The spelling of 28386122 in words is "twenty-eight million, three hundred eighty-six thousand, one hundred twenty-two".