28182522 has 16 divisors (see below), whose sum is σ = 56484000. Its totient is φ = 9374352.

The previous prime is 28182499. The next prime is 28182523. The reversal of 28182522 is 22528182.

It is a self number, because there is not a number n which added to its sum of digits gives 28182522.

It is not an unprimeable number, because it can be changed into a prime (28182523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1713 + ... + 7700.

It is an arithmetic number, because the mean of its divisors is an integer number (3530250).

Almost surely, 2^28182522 is an apocalyptic number.

28182522 is an abundant number, since it is smaller than the sum of its proper divisors (28301478).

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

28182522 is a wasteful number, since it uses less digits than its factorization.

28182522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9917.

The product of its digits is 5120, while the sum is 30.

The square root of 28182522 is about 5308.7213149684. The cubic root of 28182522 is about 304.3172832923.

The spelling of 28182522 in words is "twenty-eight million, one hundred eighty-two thousand, five hundred twenty-two".