28339548 has 12 divisors (see below), whose sum is σ = 66125640. Its totient is φ = 9446512.

The previous prime is 28339513. The next prime is 28339559. The reversal of 28339548 is 84593382.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180803 + ... + 1180826.

It is an arithmetic number, because the mean of its divisors is an integer number (5510470).

Almost surely, 2^28339548 is an apocalyptic number.

It is an amenable number.

28339548 is an abundant number, since it is smaller than the sum of its proper divisors (37786092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28339548 is a wasteful number, since it uses less digits than its factorization.

28339548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2361636 (or 2361634 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 28339548 is about 5323.4902085004. The cubic root of 28339548 is about 304.8814302172.

The spelling of 28339548 in words is "twenty-eight million, three hundred thirty-nine thousand, five hundred forty-eight".