28341584 has 40 divisors (see below), whose sum is σ = 60163560. Its totient is φ = 12873728.

The previous prime is 28341569. The next prime is 28341587. The reversal of 28341584 is 48514382.

It can be written as a sum of positive squares in 4 ways, for example, as 5569600 + 22771984 = 2360^2 + 4772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28341587) 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 7 ways as a sum of consecutive naturals, for example, 6092 + ... + 9684.

It is an arithmetic number, because the mean of its divisors is an integer number (1504089).

Almost surely, 2^28341584 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28341584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30081780).

28341584 is an abundant number, since it is smaller than the sum of its proper divisors (31821976).

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

28341584 is a wasteful number, since it uses less digits than its factorization.

28341584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3641 counting only the distinct ones).

The product of its digits is 30720, while the sum is 35.

The square root of 28341584 is about 5323.6814329935. The cubic root of 28341584 is about 304.8887312479. Note that the first 3 decimals are identical.

The spelling of 28341584 in words is "twenty-eight million, three hundred forty-one thousand, five hundred eighty-four".