28044268 has 36 divisors (see below), whose sum is σ = 59581872. Its totient is φ = 11494560.

The previous prime is 28044259. The next prime is 28044277. The reversal of 28044268 is 86244082.

It is an interprime number because it is at equal distance from previous prime (28044259) and next prime (28044277).

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1398 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (1655052).

Almost surely, 2^28044268 is an apocalyptic number.

28044268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28044268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29790936).

28044268 is an abundant number, since it is smaller than the sum of its proper divisors (31537604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28044268 is a wasteful number, since it uses less digits than its factorization.

28044268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262 (or 6253 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 28044268 is about 5295.6839029534. The cubic root of 28044268 is about 303.8188411655.

The spelling of 28044268 in words is "twenty-eight million, forty-four thousand, two hundred sixty-eight".