28382184 has 128 divisors (see below), whose sum is σ = 85536000. Its totient is φ = 8692992.

The previous prime is 28382177. The next prime is 28382191. The reversal of 28382184 is 48128382.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28382177) and next prime (28382191).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143974 + ... + 144170.

It is an arithmetic number, because the mean of its divisors is an integer number (668250).

Almost surely, 2^28382184 is an apocalyptic number.

28382184 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 28382184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42768000).

28382184 is an abundant number, since it is smaller than the sum of its proper divisors (57153816).

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

28382184 is a wasteful number, since it uses less digits than its factorization.

28382184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 254 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 28382184 is about 5327.4932191416. The cubic root of 28382184 is about 305.0342485952.

The spelling of 28382184 in words is "twenty-eight million, three hundred eighty-two thousand, one hundred eighty-four".