28324502 has 8 divisors (see below), whose sum is σ = 43024800. Its totient is φ = 13982904.

The previous prime is 28324411. The next prime is 28324507. The reversal of 28324502 is 20542382.

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 (28324507) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 89477 + ... + 89792.

It is an arithmetic number, because the mean of its divisors is an integer number (5378100).

Almost surely, 2^28324502 is an apocalyptic number.

28324502 is a deficient number, since it is larger than the sum of its proper divisors (14700298).

28324502 is a wasteful number, since it uses less digits than its factorization.

28324502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179350.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 28324502 is about 5322.0768502531. The cubic root of 28324502 is about 304.8274649004.

Adding to 28324502 its reverse (20542382), we get a palindrome (48866884).

The spelling of 28324502 in words is "twenty-eight million, three hundred twenty-four thousand, five hundred two".