4428928 has 32 divisors (see below), whose sum is σ = 10085760. Its totient is φ = 1897728.

The previous prime is 4428917. The next prime is 4428947. The reversal of 4428928 is 8298244.

It is a tau number, because it is divible by the number of its divisors (32).

It is a plaindrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1576 + ... + 3367.

It is an arithmetic number, because the mean of its divisors is an integer number (315180).

Almost surely, 2^4428928 is an apocalyptic number.

It is an amenable number.

4428928 is an abundant number, since it is smaller than the sum of its proper divisors (5656832).

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

4428928 is an equidigital number, since it uses as much as digits as its factorization.

4428928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964 (or 4952 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 4428928 is about 2104.5018412917. The cubic root of 4428928 is about 164.2225809806. Note that the first 3 decimals are identical.

It can be divided in two parts, 4428 and 928, that added together give a triangular number (5356 = T₁₀₃).

The spelling of 4428928 in words is "four million, four hundred twenty-eight thousand, nine hundred twenty-eight".