28196288 has 14 divisors (see below), whose sum is σ = 55952136. Its totient is φ = 14098112.

The previous prime is 28196281. The next prime is 28196291. The reversal of 28196288 is 88269182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28196281) 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, 220220 + ... + 220347.

Almost surely, 2^28196288 is an apocalyptic number.

It is an amenable number.

28196288 is a deficient number, since it is larger than the sum of its proper divisors (27755848).

28196288 is an equidigital number, since it uses as much as digits as its factorization.

28196288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440579 (or 440569 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 28196288 is about 5310.0177024187. The cubic root of 28196288 is about 304.3668240421.

It can be divided in two parts, 281 and 96288, that added together give a palindrome (96569).

The spelling of 28196288 in words is "twenty-eight million, one hundred ninety-six thousand, two hundred eighty-eight".