28336284 has 48 divisors (see below), whose sum is σ = 74726400. Its totient is φ = 9283248.

The previous prime is 28336271. The next prime is 28336303. The reversal of 28336284 is 48263382.

28336284 is a `hidden beast` number, since 28 + 3 + 3 + 628 + 4 = 666.

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

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, 4149 + ... + 8595.

It is an arithmetic number, because the mean of its divisors is an integer number (1556800).

Almost surely, 2^28336284 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 28336284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37363200).

28336284 is an abundant number, since it is smaller than the sum of its proper divisors (46390116).

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

28336284 is a wasteful number, since it uses less digits than its factorization.

28336284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519 (or 4511 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 28336284 is about 5323.1836338793. The cubic root of 28336284 is about 304.8697248883.

The spelling of 28336284 in words is "twenty-eight million, three hundred thirty-six thousand, two hundred eighty-four".