28324824 has 64 divisors (see below), whose sum is σ = 79764480. Its totient is φ = 8304000.

The previous prime is 28324789. The next prime is 28324847. The reversal of 28324824 is 42842382.

It is a Harshad number since it is a multiple of its sum of digits (33).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6454 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (1246320).

Almost surely, 2^28324824 is an apocalyptic number.

28324824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28324824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39882240).

28324824 is an abundant number, since it is smaller than the sum of its proper divisors (51439656).

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

28324824 is a wasteful number, since it uses less digits than its factorization.

28324824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3512 (or 3508 counting only the distinct ones).

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

The square root of 28324824 is about 5322.1071015153. The cubic root of 28324824 is about 304.8286200143.

The spelling of 28324824 in words is "twenty-eight million, three hundred twenty-four thousand, eight hundred twenty-four".