28443282 has 32 divisors (see below), whose sum is σ = 65910912. Its totient is φ = 8014464.

The previous prime is 28443281. The next prime is 28443307. The reversal of 28443282 is 28234482.

It is not an unprimeable number, because it can be changed into a prime (28443281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1573 + ... + 7704.

It is an arithmetic number, because the mean of its divisors is an integer number (2059716).

Almost surely, 2^28443282 is an apocalyptic number.

28443282 is an abundant number, since it is smaller than the sum of its proper divisors (37467630).

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

28443282 is a wasteful number, since it uses less digits than its factorization.

28443282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9362.

The product of its digits is 24576, while the sum is 33.

The square root of 28443282 is about 5333.2243530532. The cubic root of 28443282 is about 305.2529729574.

The spelling of 28443282 in words is "twenty-eight million, four hundred forty-three thousand, two hundred eighty-two".