28082444 has 24 divisors (see below), whose sum is σ = 53458608. Its totient is φ = 12830400.

The previous prime is 28082423. The next prime is 28082459. The reversal of 28082444 is 44428082.

It is a super-2 number, since 2×28082444² = 1577247322026272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28082444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 7925.

It is an arithmetic number, because the mean of its divisors is an integer number (2227442).

Almost surely, 2^28082444 is an apocalyptic number.

It is an amenable number.

28082444 is a deficient number, since it is larger than the sum of its proper divisors (25376164).

28082444 is a wasteful number, since it uses less digits than its factorization.

28082444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465 (or 5463 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 28082444 is about 5299.2871218684. The cubic root of 28082444 is about 303.9566391295.

The spelling of 28082444 in words is "twenty-eight million, eighty-two thousand, four hundred forty-four".