28822732 has 12 divisors (see below), whose sum is σ = 50621256. Its totient is φ = 14359520.

The previous prime is 28822727. The next prime is 28822733. The reversal of 28822732 is 23722882.

It is not an unprimeable number, because it can be changed into a prime (28822733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11698 + ... + 13945.

It is an arithmetic number, because the mean of its divisors is an integer number (4218438).

Almost surely, 2^28822732 is an apocalyptic number.

It is an amenable number.

28822732 is a deficient number, since it is larger than the sum of its proper divisors (21798524).

28822732 is a wasteful number, since it uses less digits than its factorization.

28822732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25928 (or 25926 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 28822732 is about 5368.6806572937. The cubic root of 28822732 is about 306.6043987207.

The spelling of 28822732 in words is "twenty-eight million, eight hundred twenty-two thousand, seven hundred thirty-two".