28530314 has 8 divisors (see below), whose sum is σ = 43188420. Its totient is φ = 14134176.

The previous prime is 28530311. The next prime is 28530331. The reversal of 28530314 is 41303582.

It can be written as a sum of positive squares in 2 ways, for example, as 26884225 + 1646089 = 5185^2 + 1283^2 .

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

It is not an unprimeable number, because it can be changed into a prime (28530311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65219 + ... + 65654.

Almost surely, 2^28530314 is an apocalyptic number.

28530314 is a deficient number, since it is larger than the sum of its proper divisors (14658106).

28530314 is a wasteful number, since it uses less digits than its factorization.

28530314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130984.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 28530314 is about 5341.3775376770. The cubic root of 28530314 is about 305.5639980820.

Adding to 28530314 its reverse (41303582), we get a palindrome (69833896).

The spelling of 28530314 in words is "twenty-eight million, five hundred thirty thousand, three hundred fourteen".