28233226 has 32 divisors (see below), whose sum is σ = 51546240. Its totient is φ = 11321856.

The previous prime is 28233223. The next prime is 28233299. The reversal of 28233226 is 62233282.

It is a junction number, because it is equal to n+sod(n) for n = 28233194 and 28233203.

It is not an unprimeable number, because it can be changed into a prime (28233223) 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 15 ways as a sum of consecutive naturals, for example, 74305 + ... + 74683.

It is an arithmetic number, because the mean of its divisors is an integer number (1610820).

Almost surely, 2^28233226 is an apocalyptic number.

28233226 is a deficient number, since it is larger than the sum of its proper divisors (23313014).

28233226 is a wasteful number, since it uses less digits than its factorization.

28233226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718.

The product of its digits is 6912, while the sum is 28.

The square root of 28233226 is about 5313.4947068761. The cubic root of 28233226 is about 304.4996759964.

The spelling of 28233226 in words is "twenty-eight million, two hundred thirty-three thousand, two hundred twenty-six".