28280941 has 8 divisors (see below), whose sum is σ = 30660224. Its totient is φ = 25930800.

The previous prime is 28280929. The next prime is 28280947. The reversal of 28280941 is 14908282.

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

It is a cyclic number.

It is not a de Polignac number, because 28280941 - 2¹¹ = 28278893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28280897 and 28280906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28280947) 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, 5241 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (3832528).

Almost surely, 2^28280941 is an apocalyptic number.

It is an amenable number.

28280941 is a deficient number, since it is larger than the sum of its proper divisors (2379283).

28280941 is a wasteful number, since it uses less digits than its factorization.

28280941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14571.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 28280941 is about 5317.9827942557. The cubic root of 28280941 is about 304.6711173186.

The spelling of 28280941 in words is "twenty-eight million, two hundred eighty thousand, nine hundred forty-one".