28248188 has 12 divisors (see below), whose sum is σ = 50060640. Its totient is φ = 13945152.

The previous prime is 28248179. The next prime is 28248239. The reversal of 28248188 is 88184282.

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, 44381 + ... + 45012.

It is an arithmetic number, because the mean of its divisors is an integer number (4171720).

Almost surely, 2^28248188 is an apocalyptic number.

It is an amenable number.

28248188 is a deficient number, since it is larger than the sum of its proper divisors (21812452).

28248188 is a wasteful number, since it uses less digits than its factorization.

28248188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89476 (or 89474 counting only the distinct ones).

The product of its digits is 65536, while the sum is 41.

The square root of 28248188 is about 5314.9024450125. The cubic root of 28248188 is about 304.5534556529.

The spelling of 28248188 in words is "twenty-eight million, two hundred forty-eight thousand, one hundred eighty-eight".