28213182 has 24 divisors (see below), whose sum is σ = 61318296. Its totient is φ = 9375216.

The previous prime is 28213127. The next prime is 28213189. The reversal of 28213182 is 28131282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28213189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3988 + ... + 8504.

It is an arithmetic number, because the mean of its divisors is an integer number (2554929).

Almost surely, 2^28213182 is an apocalyptic number.

28213182 is an abundant number, since it is smaller than the sum of its proper divisors (33105114).

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

28213182 is a wasteful number, since it uses less digits than its factorization.

28213182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4872 (or 4869 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 28213182 is about 5311.6082310351. The cubic root of 28213182 is about 304.4275997314.

The spelling of 28213182 in words is "twenty-eight million, two hundred thirteen thousand, one hundred eighty-two".