28544814 has 24 divisors (see below), whose sum is σ = 62772840. Its totient is φ = 9372528.

The previous prime is 28544807. The next prime is 28544837. The reversal of 28544814 is 41844582.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10629 + ... + 13040.

It is an arithmetic number, because the mean of its divisors is an integer number (2615535).

Almost surely, 2^28544814 is an apocalyptic number.

28544814 is an abundant number, since it is smaller than the sum of its proper divisors (34228026).

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

28544814 is a wasteful number, since it uses less digits than its factorization.

28544814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23744 (or 23741 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 28544814 is about 5342.7346930200. The cubic root of 28544814 is about 305.6157550492.

The spelling of 28544814 in words is "twenty-eight million, five hundred forty-four thousand, eight hundred fourteen".