28522582 has 8 divisors (see below), whose sum is σ = 46673352. Its totient is φ = 12964800.

The previous prime is 28522537. The next prime is 28522589.

28522582 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28522589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 648219 + ... + 648262.

It is an arithmetic number, because the mean of its divisors is an integer number (5834169).

Almost surely, 2^28522582 is an apocalyptic number.

28522582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28522582 is a deficient number, since it is larger than the sum of its proper divisors (18150770).

28522582 is a wasteful number, since it uses less digits than its factorization.

28522582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296494.

The product of its digits is 25600, while the sum is 34.

The square root of 28522582 is about 5340.6537053061. The cubic root of 28522582 is about 305.5363919564.

The spelling of 28522582 in words is "twenty-eight million, five hundred twenty-two thousand, five hundred eighty-two".