28484444 has 24 divisors (see below), whose sum is σ = 51437568. Its totient is φ = 13794480.

The previous prime is 28484441. The next prime is 28484453. The reversal of 28484444 is 44448482.

It is a super-3 number, since 3×28484444³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

28484444 is a modest number, since divided by 4444 gives 2848 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 28484398 and 28484407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28484441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18629 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (2143232).

Almost surely, 2^28484444 is an apocalyptic number.

It is an amenable number.

28484444 is a deficient number, since it is larger than the sum of its proper divisors (22953124).

28484444 is a wasteful number, since it uses less digits than its factorization.

28484444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1623 counting only the distinct ones).

The product of its digits is 131072, while the sum is 38.

The square root of 28484444 is about 5337.0819742627. The cubic root of 28484444 is about 305.4001520187.

The spelling of 28484444 in words is "twenty-eight million, four hundred eighty-four thousand, four hundred forty-four".