28044064 has 24 divisors (see below), whose sum is σ = 55764828. Its totient is φ = 13881600.

The previous prime is 28044059. The next prime is 28044103. The reversal of 28044064 is 46044082.

It can be written as a sum of positive squares in 2 ways, for example, as 27248400 + 795664 = 5220^2 + 892^2 .

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 3 ways as a sum of consecutive naturals, for example, 1107 + ... + 7570.

Almost surely, 2^28044064 is an apocalyptic number.

It is an amenable number.

28044064 is a deficient number, since it is larger than the sum of its proper divisors (27720764).

28044064 is a wasteful number, since it uses less digits than its factorization.

28044064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788 (or 8780 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 28044064 is about 5295.6646419501. The cubic root of 28044064 is about 303.8181044826.

It can be divided in two parts, 280 and 44064, that added together give a palindrome (44344).

The spelling of 28044064 in words is "twenty-eight million, forty-four thousand, sixty-four".