28543448 has 16 divisors (see below), whose sum is σ = 53731080. Its totient is φ = 14215168.

The previous prime is 28543441. The next prime is 28543477. The reversal of 28543448 is 84434582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28543441) by changing a digit.

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, 4886 + ... + 8997.

Almost surely, 2^28543448 is an apocalyptic number.

It is an amenable number.

28543448 is a deficient number, since it is larger than the sum of its proper divisors (25187632).

28543448 is a wasteful number, since it uses less digits than its factorization.

28543448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14146 (or 14142 counting only the distinct ones).

The product of its digits is 122880, while the sum is 38.

The square root of 28543448 is about 5342.6068543362. The cubic root of 28543448 is about 305.6108799339.

The spelling of 28543448 in words is "twenty-eight million, five hundred forty-three thousand, four hundred forty-eight".