28268241 has 8 divisors (see below), whose sum is σ = 37789440. Its totient is φ = 18796272.

The previous prime is 28268237. The next prime is 28268267. The reversal of 28268241 is 14286282.

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 28268241 - 2² = 28268237 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28268221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10945 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (4723680).

Almost surely, 2^28268241 is an apocalyptic number.

It is an amenable number.

28268241 is a deficient number, since it is larger than the sum of its proper divisors (9521199).

28268241 is a wasteful number, since it uses less digits than its factorization.

28268241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24615.

The product of its digits is 12288, while the sum is 33.

The square root of 28268241 is about 5316.7885983928. The cubic root of 28268241 is about 304.6255047094.

The spelling of 28268241 in words is "twenty-eight million, two hundred sixty-eight thousand, two hundred forty-one".