28016043 has 16 divisors (see below), whose sum is σ = 41212800. Its totient is φ = 16786880.

The previous prime is 28016041. The next prime is 28016063. The reversal of 28016043 is 34061082.

It is a happy number.

28016043 is nontrivially palindromic in base 2.

It is not a de Polignac number, because 28016043 - 2¹ = 28016041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28016041) 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 15 ways as a sum of consecutive naturals, for example, 1833 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 2^28016043 is an apocalyptic number.

28016043 is a deficient number, since it is larger than the sum of its proper divisors (13196757).

28016043 is a wasteful number, since it uses less digits than its factorization.

28016043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 28016043 is about 5293.0183260593. The cubic root of 28016043 is about 303.7168813491.

The spelling of 28016043 in words is "twenty-eight million, sixteen thousand, forty-three".