28521482 has 16 divisors (see below), whose sum is σ = 47017152. Its totient is φ = 12868320.

The previous prime is 28521443. The next prime is 28521497. The reversal of 28521482 is 28412582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1718 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (2938572).

Almost surely, 2^28521482 is an apocalyptic number.

28521482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28521482 is a deficient number, since it is larger than the sum of its proper divisors (18495670).

28521482 is a wasteful number, since it uses less digits than its factorization.

28521482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9613.

The product of its digits is 10240, while the sum is 32.

The square root of 28521482 is about 5340.5507206654. The cubic root of 28521482 is about 305.5324641405.

Subtracting from 28521482 its reverse (28412582), we obtain a square (108900 = 330²).

It can be divided in two parts, 2852 and 1482, that added together give a palindrome (4334).

The spelling of 28521482 in words is "twenty-eight million, five hundred twenty-one thousand, four hundred eighty-two".