28927344 has 40 divisors (see below), whose sum is σ = 75467392. Its totient is φ = 9547200.

The previous prime is 28927321. The next prime is 28927361. The reversal of 28927344 is 44372982.

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 7 ways as a sum of consecutive naturals, for example, 2019 + ... + 7869.

Almost surely, 2^28927344 is an apocalyptic number.

28927344 is a gapful number since it is divisible by the number (24) 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 28927344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37733696).

28927344 is an abundant number, since it is smaller than the sum of its proper divisors (46540048).

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

28927344 is a wasteful number, since it uses less digits than its factorization.

28927344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965 (or 5959 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 28927344 is about 5378.4146363032. The cubic root of 28927344 is about 306.9748906950.

The spelling of 28927344 in words is "twenty-eight million, nine hundred twenty-seven thousand, three hundred forty-four".