28856148 has 12 divisors (see below), whose sum is σ = 67331040. Its totient is φ = 9618712.

The previous prime is 28856141. The next prime is 28856153. The reversal of 28856148 is 84165882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28856141) by changing a digit.

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, 1202328 + ... + 1202351.

It is an arithmetic number, because the mean of its divisors is an integer number (5610920).

Almost surely, 2^28856148 is an apocalyptic number.

It is an amenable number.

28856148 is an abundant number, since it is smaller than the sum of its proper divisors (38474892).

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

28856148 is a wasteful number, since it uses less digits than its factorization.

28856148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404686 (or 2404684 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 28856148 is about 5371.7918798107. The cubic root of 28856148 is about 306.7228415262.

The spelling of 28856148 in words is "twenty-eight million, eight hundred fifty-six thousand, one hundred forty-eight".