28226193 has 8 divisors (see below), whose sum is σ = 38932800. Its totient is φ = 18168528.

The previous prime is 28226183. The next prime is 28226197. The reversal of 28226193 is 39162282.

It is a happy number.

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

It is not a de Polignac number, because 28226193 - 2⁸ = 28225937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28226197) 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 7 ways as a sum of consecutive naturals, for example, 162133 + ... + 162306.

It is an arithmetic number, because the mean of its divisors is an integer number (4866600).

Almost surely, 2^28226193 is an apocalyptic number.

It is an amenable number.

28226193 is a deficient number, since it is larger than the sum of its proper divisors (10706607).

28226193 is a wasteful number, since it uses less digits than its factorization.

28226193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324471.

The product of its digits is 10368, while the sum is 33.

The square root of 28226193 is about 5312.8328601604. The cubic root of 28226193 is about 304.4743899018.

The spelling of 28226193 in words is "twenty-eight million, two hundred twenty-six thousand, one hundred ninety-three".