28183356 has 48 divisors (see below), whose sum is σ = 74323200. Its totient is φ = 9233136.

The previous prime is 28183321. The next prime is 28183369. The reversal of 28183356 is 65338182.

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

It is a self number, because there is not a number n which added to its sum of digits gives 28183356.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4161 + ... + 8583.

It is an arithmetic number, because the mean of its divisors is an integer number (1548400).

Almost surely, 2^28183356 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 28183356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37161600).

28183356 is an abundant number, since it is smaller than the sum of its proper divisors (46139844).

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

28183356 is a wasteful number, since it uses less digits than its factorization.

28183356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495 (or 4487 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 28183356 is about 5308.7998643761. The cubic root of 28183356 is about 304.3202851304.

The spelling of 28183356 in words is "twenty-eight million, one hundred eighty-three thousand, three hundred fifty-six".