28544732 has 12 divisors (see below), whose sum is σ = 50019480. Its totient is φ = 14253456.

The previous prime is 28544693. The next prime is 28544743. The reversal of 28544732 is 23744582.

It is a junction number, because it is equal to n+sod(n) for n = 28544692 and 28544701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 7622.

It is an arithmetic number, because the mean of its divisors is an integer number (4168290).

Almost surely, 2^28544732 is an apocalyptic number.

It is an amenable number.

28544732 is a deficient number, since it is larger than the sum of its proper divisors (21474748).

28544732 is a wasteful number, since it uses less digits than its factorization.

28544732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9460 (or 9458 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 28544732 is about 5342.7270190419. The cubic root of 28544732 is about 305.6154624040.

The spelling of 28544732 in words is "twenty-eight million, five hundred forty-four thousand, seven hundred thirty-two".