28310 has 16 divisors (see below), whose sum is σ = 54000.
Its totient is φ = 10656.
The previous prime is 28309. The next prime is 28319. The reversal of 28310 is 1382.
Adding to 28310 its reverse (1382), we get a palindrome (29692).
It is a super-2 number, since 2×283102 = 1602912200, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28319) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116 + ... + 264.
It is an arithmetic number, because the mean of its divisors is an integer number (3375).
228310 is an apocalyptic number.
28310 is a deficient number, since it is larger than the sum of its proper divisors (25690).
28310 is a wasteful number, since it uses less digits than its factorization.
28310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 175.
The product of its (nonzero) digits is 48, while the sum is 14.
The square root of 28310 is about 168.2557577024.
The cubic root of 28310 is about 30.4775432652.
The spelling of 28310 in words is "twenty-eight thousand, three hundred ten".