28268824 has 24 divisors (see below), whose sum is σ = 56309940. Its totient is φ = 13301888.

The previous prime is 28268819. The next prime is 28268833. The reversal of 28268824 is 42886282.

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 5 ways as a sum of consecutive naturals, for example, 3802 + ... + 8425.

Almost surely, 2^28268824 is an apocalyptic number.

It is an amenable number.

28268824 is a deficient number, since it is larger than the sum of its proper divisors (28041116).

28268824 is a wasteful number, since it uses less digits than its factorization.

28268824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12267 (or 12246 counting only the distinct ones).

The product of its digits is 98304, while the sum is 40.

The square root of 28268824 is about 5316.8434244390. The cubic root of 28268824 is about 304.6275988787.

It can be divided in two parts, 28268 and 824, that added together give a palindrome (29092).

The spelling of 28268824 in words is "twenty-eight million, two hundred sixty-eight thousand, eight hundred twenty-four".