28541284 has 6 divisors (see below), whose sum is σ = 49947254. Its totient is φ = 14270640.

The previous prime is 28541273. The next prime is 28541291. The reversal of 28541284 is 48214582.

It can be written as a sum of positive squares in only one way, i.e., 18301284 + 10240000 = 4278^2 + 3200^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3567657 + ... + 3567664.

Almost surely, 2^28541284 is an apocalyptic number.

It is an amenable number.

28541284 is a deficient number, since it is larger than the sum of its proper divisors (21405970).

28541284 is a wasteful number, since it uses less digits than its factorization.

28541284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135325 (or 7135323 counting only the distinct ones).

The product of its digits is 20480, while the sum is 34.

The square root of 28541284 is about 5342.4043276413. The cubic root of 28541284 is about 305.6031565192.

The spelling of 28541284 in words is "twenty-eight million, five hundred forty-one thousand, two hundred eighty-four".