28442041 has 8 divisors (see below), whose sum is σ = 29049440. Its totient is φ = 27840672.

The previous prime is 28442039. The next prime is 28442047. The reversal of 28442041 is 14024482.

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 28442041 - 2¹ = 28442039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28441997 and 28442015.

It is not an unprimeable number, because it can be changed into a prime (28442047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8746 + ... + 11548.

It is an arithmetic number, because the mean of its divisors is an integer number (3631180).

Almost surely, 2^28442041 is an apocalyptic number.

It is an amenable number.

28442041 is a deficient number, since it is larger than the sum of its proper divisors (607399).

28442041 is a wasteful number, since it uses less digits than its factorization.

28442041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 28442041 is about 5333.1080056567. The cubic root of 28442041 is about 305.2485334270.

The spelling of 28442041 in words is "twenty-eight million, four hundred forty-two thousand, forty-one".