28048161 has 16 divisors (see below), whose sum is σ = 39536640. Its totient is φ = 17637840.

The previous prime is 28048129. The next prime is 28048217. The reversal of 28048161 is 16184082.

It is not a de Polignac number, because 28048161 - 2⁵ = 28048129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28048121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14056 + ... + 15926.

It is an arithmetic number, because the mean of its divisors is an integer number (2471040).

Almost surely, 2^28048161 is an apocalyptic number.

It is an amenable number.

28048161 is a deficient number, since it is larger than the sum of its proper divisors (11488479).

28048161 is a wasteful number, since it uses less digits than its factorization.

28048161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 28048161 is about 5296.0514536775. The cubic root of 28048161 is about 303.8328988454.

The spelling of 28048161 in words is "twenty-eight million, forty-eight thousand, one hundred sixty-one".