28614312 has 48 divisors (see below), whose sum is σ = 78205140. Its totient is φ = 9451008.

The previous prime is 28614263. The next prime is 28614317. The reversal of 28614312 is 21341682.

It can be written as a sum of positive squares in 2 ways, for example, as 28579716 + 34596 = 5346^2 + 186^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28614317) 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 11 ways as a sum of consecutive naturals, for example, 6378 + ... + 9894.

Almost surely, 2^28614312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28614312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39102570).

28614312 is an abundant number, since it is smaller than the sum of its proper divisors (49590828).

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

28614312 is a wasteful number, since it uses less digits than its factorization.

28614312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3642 (or 3635 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 28614312 is about 5349.2347116200. The cubic root of 28614312 is about 305.8635813808.

Adding to 28614312 its reverse (21341682), we get a palindrome (49955994).

The spelling of 28614312 in words is "twenty-eight million, six hundred fourteen thousand, three hundred twelve".