28295226 has 12 divisors (see below), whose sum is σ = 61306362. Its totient is φ = 9431736.

The previous prime is 28295177. The next prime is 28295227. The reversal of 28295226 is 62259282.

It can be written as a sum of positive squares in only one way, i.e., 27029601 + 1265625 = 5199^2 + 1125^2 .

It is not an unprimeable number, because it can be changed into a prime (28295227) 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 5 ways as a sum of consecutive naturals, for example, 785961 + ... + 785996.

Almost surely, 2^28295226 is an apocalyptic number.

28295226 is an abundant number, since it is smaller than the sum of its proper divisors (33011136).

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

28295226 is a wasteful number, since it uses less digits than its factorization.

28295226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571965 (or 1571962 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 28295226 is about 5319.3257091477. The cubic root of 28295226 is about 304.7224062099.

The spelling of 28295226 in words is "twenty-eight million, two hundred ninety-five thousand, two hundred twenty-six".