28350226 has 8 divisors (see below), whose sum is σ = 43991820. Its totient is φ = 13686288.

The previous prime is 28350221. The next prime is 28350233. The reversal of 28350226 is 62205382.

It can be written as a sum of positive squares in 2 ways, for example, as 24354225 + 3996001 = 4935^2 + 1999^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 28350194 and 28350203.

It is not an unprimeable number, because it can be changed into a prime (28350221) 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, 244341 + ... + 244456.

Almost surely, 2^28350226 is an apocalyptic number.

28350226 is a deficient number, since it is larger than the sum of its proper divisors (15641594).

28350226 is a wasteful number, since it uses less digits than its factorization.

28350226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488828.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 28350226 is about 5324.4930275098. The cubic root of 28350226 is about 304.9197172913.

The spelling of 28350226 in words is "twenty-eight million, three hundred fifty thousand, two hundred twenty-six".