28039041 has 24 divisors (see below), whose sum is σ = 44218720. Its totient is φ = 17705952.

The previous prime is 28039019. The next prime is 28039043. The reversal of 28039041 is 14093082.

It is not a de Polignac number, because 28039041 - 2¹¹ = 28036993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28038996 and 28039014.

It is not an unprimeable number, because it can be changed into a prime (28039043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1581 + ... + 7653.

Almost surely, 2^28039041 is an apocalyptic number.

It is an amenable number.

28039041 is a deficient number, since it is larger than the sum of its proper divisors (16179679).

28039041 is an equidigital number, since it uses as much as digits as its factorization.

28039041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6107 (or 6095 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 28039041 is about 5295.1903648500. The cubic root of 28039041 is about 303.7999643460.

The spelling of 28039041 in words is "twenty-eight million, thirty-nine thousand, forty-one".