28133182 has 64 divisors (see below), whose sum is σ = 55738368. Its totient is φ = 10332000.

The previous prime is 28133177. The next prime is 28133191.

28133182 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 28133182.

It is a congruent number.

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, 338913 + ... + 338995.

It is an arithmetic number, because the mean of its divisors is an integer number (870912).

Almost surely, 2^28133182 is an apocalyptic number.

28133182 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28133182 is a deficient number, since it is larger than the sum of its proper divisors (27605186).

28133182 is a wasteful number, since it uses less digits than its factorization.

28133182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205.

The product of its digits is 2304, while the sum is 28.

The square root of 28133182 is about 5304.0722091616. The cubic root of 28133182 is about 304.1395870390.

It can be divided in two parts, 2813 and 3182, that added together give a palindrome (5995).

The spelling of 28133182 in words is "twenty-eight million, one hundred thirty-three thousand, one hundred eighty-two".