28248284 has 6 divisors (see below), whose sum is σ = 49434504. Its totient is φ = 14124140.

The previous prime is 28248281. The next prime is 28248287. The reversal of 28248284 is 48284282.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28248281) and next prime (28248287).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28248281) 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 as a sum of consecutive naturals, namely, 3531032 + ... + 3531039.

It is an arithmetic number, because the mean of its divisors is an integer number (8239084).

Almost surely, 2^28248284 is an apocalyptic number.

It is an amenable number.

28248284 is a deficient number, since it is larger than the sum of its proper divisors (21186220).

28248284 is a wasteful number, since it uses less digits than its factorization.

28248284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7062075 (or 7062073 counting only the distinct ones).

The product of its digits is 65536, while the sum is 38.

The square root of 28248284 is about 5314.9114762148. The cubic root of 28248284 is about 304.5538006556.

The spelling of 28248284 in words is "twenty-eight million, two hundred forty-eight thousand, two hundred eighty-four".