28306302 has 8 divisors (see below), whose sum is σ = 56612616. Its totient is φ = 9435432.

The previous prime is 28306301. The next prime is 28306303. The reversal of 28306302 is 20360382.

It is an interprime number because it is at equal distance from previous prime (28306301) and next prime (28306303).

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

28306302 is an admirable number.

It is a super-3 number, since 3×28306302³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2358853 + ... + 2358864.

It is an arithmetic number, because the mean of its divisors is an integer number (7076577).

Almost surely, 2^28306302 is an apocalyptic number.

28306302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28306302 is a wasteful number, since it uses less digits than its factorization.

28306302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4717722.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 28306302 is about 5320.3667166841. The cubic root of 28306302 is about 304.7621616217.

Adding to 28306302 its reverse (20360382), we get a palindrome (48666684).

The spelling of 28306302 in words is "twenty-eight million, three hundred six thousand, three hundred two".