28324002 has 32 divisors (see below), whose sum is σ = 64904832. Its totient is φ = 8072064.

The previous prime is 28323979. The next prime is 28324013. The reversal of 28324002 is 20042382.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 28324002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25368 + ... + 26460.

It is an arithmetic number, because the mean of its divisors is an integer number (2028276).

Almost surely, 2^28324002 is an apocalyptic number.

28324002 is an abundant number, since it is smaller than the sum of its proper divisors (36580830).

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

28324002 is a wasteful number, since it uses less digits than its factorization.

28324002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 28324002 is about 5322.0298759026. The cubic root of 28324002 is about 304.8256712281.

Adding to 28324002 its reverse (20042382), we get a palindrome (48366384).

The spelling of 28324002 in words is "twenty-eight million, three hundred twenty-four thousand, two".