28044235 has 8 divisors (see below), whose sum is σ = 33705936. Its totient is φ = 22400160.

The previous prime is 28044217. The next prime is 28044239. The reversal of 28044235 is 53244082.

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

It is a de Polignac number, because none of the positive numbers 2^k-28044235 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28044239) 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, 604 + ... + 7513.

It is an arithmetic number, because the mean of its divisors is an integer number (4213242).

Almost surely, 2^28044235 is an apocalyptic number.

28044235 is a deficient number, since it is larger than the sum of its proper divisors (5661701).

28044235 is an equidigital number, since it uses as much as digits as its factorization.

28044235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8813.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 28044235 is about 5295.6807872076. The cubic root of 28044235 is about 303.8187219965.

The spelling of 28044235 in words is "twenty-eight million, forty-four thousand, two hundred thirty-five".