28195122 has 8 divisors (see below), whose sum is σ = 56390256. Its totient is φ = 9398372.

The previous prime is 28195093. The next prime is 28195127. The reversal of 28195122 is 22159182.

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

28195122 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28195122.

It is not an unprimeable number, because it can be changed into a prime (28195127) 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, 2349588 + ... + 2349599.

It is an arithmetic number, because the mean of its divisors is an integer number (7048782).

Almost surely, 2^28195122 is an apocalyptic number.

28195122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28195122 is a wasteful number, since it uses less digits than its factorization.

28195122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4699192.

The product of its digits is 2880, while the sum is 30.

The square root of 28195122 is about 5309.9079088060. The cubic root of 28195122 is about 304.3626284945.

The spelling of 28195122 in words is "twenty-eight million, one hundred ninety-five thousand, one hundred twenty-two".