28841824 has 24 divisors (see below), whose sum is σ = 61945128. Its totient is φ = 13109760.

The previous prime is 28841821. The next prime is 28841849. The reversal of 28841824 is 42814882.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28841821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40617 + ... + 41320.

It is an arithmetic number, because the mean of its divisors is an integer number (2581047).

Almost surely, 2^28841824 is an apocalyptic number.

It is an amenable number.

28841824 is an abundant number, since it is smaller than the sum of its proper divisors (33103304).

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

28841824 is a wasteful number, since it uses less digits than its factorization.

28841824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81958 (or 81950 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 28841824 is about 5370.4584534283. The cubic root of 28841824 is about 306.6720813999.

The spelling of 28841824 in words is "twenty-eight million, eight hundred forty-one thousand, eight hundred twenty-four".