28944128 has 18 divisors (see below), whose sum is σ = 57775704. Its totient is φ = 14471936.

The previous prime is 28944119. The next prime is 28944169. The reversal of 28944128 is 82144982.

It is a junction number, because it is equal to n+sod(n) for n = 28944091 and 28944100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56276 + ... + 56787.

Almost surely, 2^28944128 is an apocalyptic number.

It is an amenable number.

28944128 is a deficient number, since it is larger than the sum of its proper divisors (28831576).

28944128 is an equidigital number, since it uses as much as digits as its factorization.

28944128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113079 (or 113065 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 28944128 is about 5379.9747211302. The cubic root of 28944128 is about 307.0342494159.

The spelling of 28944128 in words is "twenty-eight million, nine hundred forty-four thousand, one hundred twenty-eight".