28824424 has 8 divisors (see below), whose sum is σ = 54045810. Its totient is φ = 14412208.

The previous prime is 28824407. The next prime is 28824437. The reversal of 28824424 is 42442882.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21436900 + 7387524 = 4630^2 + 2718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 28824424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1801519 + ... + 1801534.

Almost surely, 2^28824424 is an apocalyptic number.

It is an amenable number.

28824424 is a deficient number, since it is larger than the sum of its proper divisors (25221386).

28824424 is a wasteful number, since it uses less digits than its factorization.

28824424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603059 (or 3603055 counting only the distinct ones).

The product of its digits is 32768, while the sum is 34.

The square root of 28824424 is about 5368.8382355962. The cubic root of 28824424 is about 306.6103982039.

The spelling of 28824424 in words is "twenty-eight million, eight hundred twenty-four thousand, four hundred twenty-four".